diff --git a/src/Orchard.Azure/Orchard.Azure.Web/Orchard.Azure.Web.csproj b/src/Orchard.Azure/Orchard.Azure.Web/Orchard.Azure.Web.csproj
index fb5d023cf..da1b780b6 100644
--- a/src/Orchard.Azure/Orchard.Azure.Web/Orchard.Azure.Web.csproj
+++ b/src/Orchard.Azure/Orchard.Azure.Web/Orchard.Azure.Web.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Azure.Web</RootNamespace>
     <AssemblyName>Orchard.Azure.Web</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -45,6 +46,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.1.13.813, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
@@ -92,9 +94,7 @@
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
       <Private>False</Private>
     </Reference>
-    <Reference Include="System.Data.DataSetExtensions">
-      <Private>False</Private>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Data.Services.Client" />
     <Reference Include="System.Data.SqlServerCe, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
@@ -110,9 +110,7 @@
     <Reference Include="System.Web.Entity">
       <Private>False</Private>
     </Reference>
-    <Reference Include="System.Web.Extensions">
-      <Private>False</Private>
-    </Reference>
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Helpers">
       <HintPath>..\..\..\lib\aspnetmvc\System.Web.Helpers.dll</HintPath>
       <Private>True</Private>
@@ -160,9 +158,7 @@
     <Reference Include="System.Web.Mobile">
       <Private>False</Private>
     </Reference>
-    <Reference Include="System.Xml.Linq">
-      <Private>False</Private>
-    </Reference>
+    <Reference Include="System.Xml.Linq" />
     <Reference Include="WebMatrix.Data">
       <HintPath>..\..\..\lib\aspnetmvc\WebMatrix.Data.dll</HintPath>
       <Private>True</Private>
diff --git a/src/Orchard.Azure/Orchard.Azure.Web/Web.config b/src/Orchard.Azure/Orchard.Azure.Web/Web.config
index 44b7af703..845eb301d 100644
--- a/src/Orchard.Azure/Orchard.Azure.Web/Web.config
+++ b/src/Orchard.Azure/Orchard.Azure.Web/Web.config
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!-- 
     Note: As an alternative to hand editing this file you can use the 
     web admin tool to configure settings for your application. Use
@@ -9,94 +9,95 @@
 -->
 <configuration>
   <configSections>
-    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-        <remove name="host" />
-        <remove name="pages" />
-        <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-        <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
-
-    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" requirePermission="false" />
+    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" requirePermission="false"/>
   </configSections>
-
   <appSettings>
-    <add key="webpages:Enabled" value="false" />
-    <add key="log4net.Config" value="Config\log4net.config" />
+    <add key="webpages:Enabled" value="false"/>
+    <add key="log4net.Config" value="Config\log4net.config"/>
   </appSettings>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Linq" />
-        <add namespace="System.Collections.Generic" />
-        <add namespace="Orchard.Mvc.Html" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Linq"/>
+        <add namespace="System.Collections.Generic"/>
+        <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.diagnostics>
     <trace>
       <listeners>
-        <add type="Microsoft.WindowsAzure.Diagnostics.DiagnosticMonitorTraceListener, Microsoft.WindowsAzure.Diagnostics, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
-          name="AzureDiagnostics">
-          <filter type="" />
+        <add type="Microsoft.WindowsAzure.Diagnostics.DiagnosticMonitorTraceListener, Microsoft.WindowsAzure.Diagnostics, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" name="AzureDiagnostics">
+          <filter type=""/>
         </add>
       </listeners>
     </trace>
   </system.diagnostics>
-  
   <!-- 
         Set default transaction timeout to 30 minutes so that interactive debugging 
         is easier (default timeout is less than one minute)
   -->
   <system.transactions>
-    <defaultSettings timeout="00:30:00" />
+    <defaultSettings timeout="00:30:00"/>
   </system.transactions>
+  <!--
+    For a description of web.config changes for .NET 4.5 see http://go.microsoft.com/fwlink/?LinkId=235367.
+
+    The following attributes can be set on the <httpRuntime> tag.
+      <system.Web>
+        <httpRuntime targetFramework="4.5" />
+      </system.Web>
+  -->
   <system.web>
     <!-- ///TODO: Need to add machine key here -->
     <!-- <machineKey validationKey="" decryptionKey="" validation="SHA1" decryption="AES" /> -->
-    
-    <httpRuntime requestValidationMode="2.0" />
+    <httpRuntime targetFramework="4.5" requestValidationMode="2.0"/>
     <!-- 
             Set compilation debug="true" to insert debugging 
             symbols into the compiled page. Because this 
             affects performance, set this value to true only 
             during development.
     -->
-    <compilation debug="true" targetFramework="4.0" batch="true" numRecompilesBeforeAppRestart="250">
+    <compilation debug="true" targetFramework="4.5" batch="true" numRecompilesBeforeAppRestart="250">
       <buildProviders>
-        <add extension=".csproj" type="Orchard.Environment.Extensions.Compilers.CSharpExtensionBuildProviderShim" />
+        <add extension=".csproj" type="Orchard.Environment.Extensions.Compilers.CSharpExtensionBuildProviderShim"/>
       </buildProviders>
       <assemblies>
-        <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" />
-        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" />
-        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" />
-        <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
-        <remove assembly="mscorlib" />
-        <remove assembly="System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
-        <remove assembly="System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
-        <remove assembly="System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
-        <remove assembly="System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
-        <remove assembly="System.Web.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
-        <remove assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
-        <remove assembly="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
-        <remove assembly="System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
-        <remove assembly="System.IdentityModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
-        <remove assembly="System.Runtime.Serialization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
-        <remove assembly="System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
-        <remove assembly="System.ServiceModel.Activation, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <remove assembly="System.ServiceModel.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <remove assembly="System.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <remove assembly="System.ServiceModel.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <remove assembly="System.WorkflowServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <remove assembly="System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <remove assembly="System.Data.DataSetExtensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
-        <remove assembly="System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL"/>
+        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL"/>
+        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL"/>
+        <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
+        <remove assembly="mscorlib"/>
+        <remove assembly="System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
+        <remove assembly="System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
+        <remove assembly="System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
+        <remove assembly="System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
+        <remove assembly="System.Web.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
+        <remove assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
+        <remove assembly="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
+        <remove assembly="System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
+        <remove assembly="System.IdentityModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
+        <remove assembly="System.Runtime.Serialization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
+        <remove assembly="System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
+        <remove assembly="System.ServiceModel.Activation, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <remove assembly="System.ServiceModel.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <remove assembly="System.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <remove assembly="System.ServiceModel.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <remove assembly="System.WorkflowServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <remove assembly="System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <remove assembly="System.Data.DataSetExtensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
+        <remove assembly="System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
     <!--
@@ -105,9 +106,8 @@
             ASP.NET to identify an incoming user. 
     -->
     <authentication mode="Forms">
-      <forms loginUrl="~/Users/Account/AccessDenied" timeout="2880" />
+      <forms loginUrl="~/Users/Account/AccessDenied" timeout="2880"/>
     </authentication>
-
     <!--
             The <customErrors> section enables configuration 
             of what to do if/when an unhandled error occurs 
@@ -115,72 +115,64 @@
             it enables developers to configure html error pages 
             to be displayed in place of a error stack trace.
     -->
-    <customErrors mode="Off" />
-    <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
+    <customErrors mode="Off"/>
+    <pages>
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Linq" />
-        <add namespace="System.Collections.Generic" />
-        <add namespace="Orchard.Mvc.Html" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Linq"/>
+        <add namespace="System.Collections.Generic"/>
+        <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
-   
   </system.web>
   <!-- 
         The system.webServer section is required for running ASP.NET AJAX under Internet
         Information Services 7.0.  It is not necessary for previous version of IIS.
   -->
   <system.webServer>
-    
-    <validation validateIntegratedModeConfiguration="false" />
-    <modules runAllManagedModulesForAllRequests="true" />
+    <validation validateIntegratedModeConfiguration="false"/>
+    <modules runAllManagedModulesForAllRequests="true"/>
     <handlers accessPolicy="Script">
       <!-- clear all handlers, prevents executing code file extensions, prevents returning any file contents -->
-      <clear />
+      <clear/>
       <!-- Return 404 for all requests via managed handler. The url routing handler will substitute the mvc request handler when routes match. -->
-      <add name="NotFound" path="*" verb="*" type="System.Web.HttpNotFoundHandler" preCondition="integratedMode" requireAccess="Script" />
+      <add name="NotFound" path="*" verb="*" type="System.Web.HttpNotFoundHandler" preCondition="integratedMode" requireAccess="Script"/>
     </handlers>
   </system.webServer>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
-      <probing privatePath="App_Data/Dependencies" />
+      <probing privatePath="App_Data/Dependencies"/>
       <dependentAssembly>
-        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
+        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35"/>
         <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0"/>
       </dependentAssembly>
-
       <dependentAssembly>
-        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
+        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35"/>
         <bindingRedirect oldVersion="0.0.0.0-2.0.0.0" newVersion="2.0.0.0"/>
       </dependentAssembly>
-
       <dependentAssembly>
-        <assemblyIdentity name="System.Web.Razor" publicKeyToken="31bf3856ad364e35" />
+        <assemblyIdentity name="System.Web.Razor" publicKeyToken="31bf3856ad364e35"/>
         <bindingRedirect oldVersion="0.0.0.0-2.0.0.0" newVersion="2.0.0.0"/>
       </dependentAssembly>
-
       <dependentAssembly>
-        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
+        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35"/>
         <bindingRedirect oldVersion="0.0.0.0-2.0.0.0" newVersion="2.0.0.0"/>
       </dependentAssembly>
-
       <dependentAssembly>
-        <assemblyIdentity name="System.Web.WebPages.Deployment" publicKeyToken="31bf3856ad364e35" />
+        <assemblyIdentity name="System.Web.WebPages.Deployment" publicKeyToken="31bf3856ad364e35"/>
         <bindingRedirect oldVersion="0.0.0.0-2.0.0.0" newVersion="2.0.0.0"/>
       </dependentAssembly>
-
       <dependentAssembly>
-        <assemblyIdentity name="System.Web.WebPages.Razor" publicKeyToken="31bf3856ad364e35" />
+        <assemblyIdentity name="System.Web.WebPages.Razor" publicKeyToken="31bf3856ad364e35"/>
         <bindingRedirect oldVersion="0.0.0.0-2.0.0.0" newVersion="2.0.0.0"/>
       </dependentAssembly>
-
       <dependentAssembly>
-        <assemblyIdentity name="NHibernate" publicKeyToken="aa95f207798dfdb4" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-3.3.1.4000" newVersion="3.3.1.4000" />
+        <assemblyIdentity name="NHibernate" publicKeyToken="aa95f207798dfdb4" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-3.3.1.4000" newVersion="3.3.1.4000"/>
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Azure/Orchard.Azure.csproj b/src/Orchard.Azure/Orchard.Azure.csproj
index 22cb727ed..0f59ffd47 100644
--- a/src/Orchard.Azure/Orchard.Azure.csproj
+++ b/src/Orchard.Azure/Orchard.Azure.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Azure</RootNamespace>
     <AssemblyName>Orchard.Azure</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -42,6 +42,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -51,6 +52,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="log4net">
diff --git a/src/Orchard.Core.Tests/Orchard.Core.Tests.csproj b/src/Orchard.Core.Tests/Orchard.Core.Tests.csproj
index 1abcf3f7e..814b9bebe 100644
--- a/src/Orchard.Core.Tests/Orchard.Core.Tests.csproj
+++ b/src/Orchard.Core.Tests/Orchard.Core.Tests.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Core.Tests</RootNamespace>
     <AssemblyName>Orchard.Core.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -43,6 +43,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -53,6 +54,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.1.13.813, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
diff --git a/src/Orchard.Profile/Orchard.Profile.csproj b/src/Orchard.Profile/Orchard.Profile.csproj
index d69ca346b..9f9c4c46b 100644
--- a/src/Orchard.Profile/Orchard.Profile.csproj
+++ b/src/Orchard.Profile/Orchard.Profile.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Profile</RootNamespace>
     <AssemblyName>Orchard.Profile</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -43,6 +43,7 @@
     <WarningLevel>4</WarningLevel>
     <PlatformTarget>AnyCPU</PlatformTarget>
     <CodeAnalysisRuleSet>..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -52,6 +53,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="nunit.framework, Version=2.5.2.9222, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
diff --git a/src/Orchard.Specs/App.Config b/src/Orchard.Specs/App.Config
index 9c3d200cc..b7a7ef166 100644
--- a/src/Orchard.Specs/App.Config
+++ b/src/Orchard.Specs/App.Config
@@ -1,3 +1,3 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0"?>
 <configuration>
-</configuration>
\ No newline at end of file
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration>
diff --git a/src/Orchard.Specs/Hosting/Orchard.Web/Core/Web.config b/src/Orchard.Specs/Hosting/Orchard.Web/Core/Web.config
index 365842c06..a77c8cad0 100644
--- a/src/Orchard.Specs/Hosting/Orchard.Web/Core/Web.config
+++ b/src/Orchard.Specs/Hosting/Orchard.Web/Core/Web.config
@@ -10,7 +10,7 @@
         <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL"/>
       </assemblies>
     </compilation>
-    <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
+    <pages>
       <namespaces>
         <add namespace="System.Web.Mvc"/>
         <add namespace="System.Web.Mvc.Ajax"/>
diff --git a/src/Orchard.Specs/Hosting/Orchard.Web/Web.config b/src/Orchard.Specs/Hosting/Orchard.Web/Web.config
index db8b985e1..f7b5a40df 100644
--- a/src/Orchard.Specs/Hosting/Orchard.Web/Web.config
+++ b/src/Orchard.Specs/Hosting/Orchard.Web/Web.config
@@ -103,7 +103,7 @@
             to be displayed in place of a error stack trace.
     -->
     <customErrors mode="RemoteOnly" />
-    <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
+    <pages>
       <namespaces>
         <add namespace="System.Web.Mvc"/>
         <add namespace="System.Web.Mvc.Ajax"/>
diff --git a/src/Orchard.Specs/Orchard.Specs.csproj b/src/Orchard.Specs/Orchard.Specs.csproj
index 81e33394e..0f59310f3 100644
--- a/src/Orchard.Specs/Orchard.Specs.csproj
+++ b/src/Orchard.Specs/Orchard.Specs.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Specs</RootNamespace>
     <AssemblyName>Orchard.Specs</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -43,6 +43,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -53,6 +54,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.1.13.813, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
diff --git a/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj b/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
index 568e040f4..8208037fc 100644
--- a/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
+++ b/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Tests.Modules</RootNamespace>
     <AssemblyName>Orchard.Tests.Modules</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -43,6 +43,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -53,6 +54,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.1.13.813, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
diff --git a/src/Orchard.Tests/App.config b/src/Orchard.Tests/App.config
index 6b2a27cad..20513c3ea 100644
--- a/src/Orchard.Tests/App.config
+++ b/src/Orchard.Tests/App.config
@@ -10,7 +10,7 @@
     </sources>
   </system.diagnostics>
   <startup>
-    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
   </startup>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
@@ -19,9 +19,9 @@
         <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0"/>
       </dependentAssembly>
       <dependentAssembly>
-        <assemblyIdentity name="NHibernate" publicKeyToken="aa95f207798dfdb4" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-3.3.1.4000" newVersion="3.3.1.4000" />
+        <assemblyIdentity name="NHibernate" publicKeyToken="aa95f207798dfdb4" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-3.3.1.4000" newVersion="3.3.1.4000"/>
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-</configuration>  
+</configuration>
diff --git a/src/Orchard.Tests/Orchard.Framework.Tests.csproj b/src/Orchard.Tests/Orchard.Framework.Tests.csproj
index d634cecbd..a1e49baf8 100644
--- a/src/Orchard.Tests/Orchard.Framework.Tests.csproj
+++ b/src/Orchard.Tests/Orchard.Framework.Tests.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Tests</RootNamespace>
     <AssemblyName>Orchard.Framework.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -43,6 +43,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -53,6 +54,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.1.13.813, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
diff --git a/src/Orchard.WarmupStarter/Orchard.WarmupStarter.csproj b/src/Orchard.WarmupStarter/Orchard.WarmupStarter.csproj
index f3b887c81..935c2f39c 100644
--- a/src/Orchard.WarmupStarter/Orchard.WarmupStarter.csproj
+++ b/src/Orchard.WarmupStarter/Orchard.WarmupStarter.csproj
@@ -10,8 +10,9 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.WarmupStarter</RootNamespace>
     <AssemblyName>Orchard.WarmupStarter</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -21,6 +22,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +31,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/src/Orchard.Web.Tests/Orchard.Web.Tests.csproj b/src/Orchard.Web.Tests/Orchard.Web.Tests.csproj
index 57062e2c4..dcbe18e6f 100644
--- a/src/Orchard.Web.Tests/Orchard.Web.Tests.csproj
+++ b/src/Orchard.Web.Tests/Orchard.Web.Tests.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Web.Tests</RootNamespace>
     <AssemblyName>Orchard.Web.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -43,6 +43,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -52,6 +53,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.1.13.813, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
diff --git a/src/Orchard.Web/Core/Orchard.Core.csproj b/src/Orchard.Web/Core/Orchard.Core.csproj
index 662c44be1..e9db87ad2 100644
--- a/src/Orchard.Web/Core/Orchard.Core.csproj
+++ b/src/Orchard.Web/Core/Orchard.Core.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Core</RootNamespace>
     <AssemblyName>Orchard.Core</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -51,7 +53,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Core/web.config b/src/Orchard.Web/Core/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Core/web.config
+++ b/src/Orchard.Web/Core/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Lucene/Lucene.csproj b/src/Orchard.Web/Modules/Lucene/Lucene.csproj
index 1b8b6bf21..f00808a3e 100644
--- a/src/Orchard.Web/Modules/Lucene/Lucene.csproj
+++ b/src/Orchard.Web/Modules/Lucene/Lucene.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Lucene</RootNamespace>
     <AssemblyName>Lucene</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -25,6 +25,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -35,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -43,6 +45,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Lucene.Net">
@@ -51,18 +54,18 @@
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
-    <Reference Include="System.Xml.Linq">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
     <Reference Include="System.Web" />
     <Reference Include="System.Xml" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Models\LuceneDocumentIndex.cs" />
diff --git a/src/Orchard.Web/Modules/Lucene/web.config b/src/Orchard.Web/Modules/Lucene/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Lucene/web.config
+++ b/src/Orchard.Web/Modules/Lucene/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Markdown/Markdown.csproj b/src/Orchard.Web/Modules/Markdown/Markdown.csproj
index 480fdfc72..b3b01f2e6 100644
--- a/src/Orchard.Web/Modules/Markdown/Markdown.csproj
+++ b/src/Orchard.Web/Modules/Markdown/Markdown.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Markdown</RootNamespace>
     <AssemblyName>Markdown</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="MarkdownSharp">
@@ -51,11 +53,17 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\Orchard\Orchard.Framework.csproj">
diff --git a/src/Orchard.Web/Modules/Markdown/web.config b/src/Orchard.Web/Modules/Markdown/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Markdown/web.config
+++ b/src/Orchard.Web/Modules/Markdown/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Alias/Orchard.Alias.csproj b/src/Orchard.Web/Modules/Orchard.Alias/Orchard.Alias.csproj
index 83cbde8c7..405c13076 100644
--- a/src/Orchard.Web/Modules/Orchard.Alias/Orchard.Alias.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Alias/Orchard.Alias.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Alias</RootNamespace>
     <AssemblyName>Orchard.Alias</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -48,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Alias/Web.config b/src/Orchard.Web/Modules/Orchard.Alias/Web.config
index 572d189ad..22eda37d8 100644
--- a/src/Orchard.Web/Modules/Orchard.Alias/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Alias/Web.config
@@ -1,39 +1,35 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.AntiSpam/Orchard.AntiSpam.csproj b/src/Orchard.Web/Modules/Orchard.AntiSpam/Orchard.AntiSpam.csproj
index 23789efab..e48d07234 100644
--- a/src/Orchard.Web/Modules/Orchard.AntiSpam/Orchard.AntiSpam.csproj
+++ b/src/Orchard.Web/Modules/Orchard.AntiSpam/Orchard.AntiSpam.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.AntiSpam</RootNamespace>
     <AssemblyName>Orchard.AntiSpam</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.AntiSpam/Web.config b/src/Orchard.Web/Modules/Orchard.AntiSpam/Web.config
index 3453e3fec..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.AntiSpam/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.AntiSpam/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.ArchiveLater/Orchard.ArchiveLater.csproj b/src/Orchard.Web/Modules/Orchard.ArchiveLater/Orchard.ArchiveLater.csproj
index cfd0f5017..ea7e0e032 100644
--- a/src/Orchard.Web/Modules/Orchard.ArchiveLater/Orchard.ArchiveLater.csproj
+++ b/src/Orchard.Web/Modules/Orchard.ArchiveLater/Orchard.ArchiveLater.csproj
@@ -13,13 +13,19 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.ArchiveLater</RootNamespace>
     <AssemblyName>Orchard.ArchiveLater</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -30,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -38,13 +45,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.ArchiveLater/web.config b/src/Orchard.Web/Modules/Orchard.ArchiveLater/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.ArchiveLater/web.config
+++ b/src/Orchard.Web/Modules/Orchard.ArchiveLater/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Autoroute/Orchard.Autoroute.csproj b/src/Orchard.Web/Modules/Orchard.Autoroute/Orchard.Autoroute.csproj
index a2644d32c..068893303 100644
--- a/src/Orchard.Web/Modules/Orchard.Autoroute/Orchard.Autoroute.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Autoroute/Orchard.Autoroute.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Autoroute</RootNamespace>
     <AssemblyName>Orchard.Autoroute</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,7 +54,10 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
     <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/src/Orchard.Web/Modules/Orchard.Autoroute/Specs/App.config b/src/Orchard.Web/Modules/Orchard.Autoroute/Specs/App.config
index 520cffb54..c18a7aefa 100644
--- a/src/Orchard.Web/Modules/Orchard.Autoroute/Specs/App.config
+++ b/src/Orchard.Web/Modules/Orchard.Autoroute/Specs/App.config
@@ -1,12 +1,12 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0"?>
 <configuration>
   <configSections>
-    <section name="specFlow" type="TechTalk.SpecFlow.Configuration.ConfigurationSectionHandler, TechTalk.SpecFlow" />
+    <section name="specFlow" type="TechTalk.SpecFlow.Configuration.ConfigurationSectionHandler, TechTalk.SpecFlow"/>
   </configSections>
   <specFlow>
-    <unitTestProvider name="NUnit" />
+    <unitTestProvider name="NUnit"/>
     <stepAssemblies>
-      <stepAssembly assembly="Orchard.Specs" />
+      <stepAssembly assembly="Orchard.Specs"/>
     </stepAssemblies>
   </specFlow>
-</configuration>
\ No newline at end of file
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration>
diff --git a/src/Orchard.Web/Modules/Orchard.Autoroute/Specs/Orchard.Autoroute.Specs.csproj b/src/Orchard.Web/Modules/Orchard.Autoroute/Specs/Orchard.Autoroute.Specs.csproj
index 784e06492..dfb34b720 100644
--- a/src/Orchard.Web/Modules/Orchard.Autoroute/Specs/Orchard.Autoroute.Specs.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Autoroute/Specs/Orchard.Autoroute.Specs.csproj
@@ -10,8 +10,9 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Autoroute.Specs</RootNamespace>
     <AssemblyName>Orchard.Autoroute.Specs</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -21,6 +22,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +31,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="nunit.framework">
diff --git a/src/Orchard.Web/Modules/Orchard.Autoroute/Web.config b/src/Orchard.Web/Modules/Orchard.Autoroute/Web.config
index 24cb5af13..7d0e83efb 100644
--- a/src/Orchard.Web/Modules/Orchard.Autoroute/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Autoroute/Web.config
@@ -1,40 +1,36 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.AzureBlobStorage/Orchard.AzureBlobStorage.csproj b/src/Orchard.Web/Modules/Orchard.AzureBlobStorage/Orchard.AzureBlobStorage.csproj
index 8dcceaf32..908d03e70 100644
--- a/src/Orchard.Web/Modules/Orchard.AzureBlobStorage/Orchard.AzureBlobStorage.csproj
+++ b/src/Orchard.Web/Modules/Orchard.AzureBlobStorage/Orchard.AzureBlobStorage.csproj
@@ -1,139 +1,145 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProductVersion>9.0.30729</ProductVersion>
-    <SchemaVersion>2.0</SchemaVersion>
-    <ProjectGuid>{CBC7993C-57D8-4A6C-992C-19E849DFE71D}</ProjectGuid>
-    <ProjectTypeGuids>{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>Orchard.AzureBlobStorage</RootNamespace>
-    <AssemblyName>Orchard.AzureBlobStorage</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
-    <MvcBuildViews>false</MvcBuildViews>
-    <FileUpgradeFlags>
-    </FileUpgradeFlags>
-    <OldToolsVersion>4.0</OldToolsVersion>
-    <UpgradeBackupLocation />
-    <TargetFrameworkProfile />
-    <UseIISExpress>false</UseIISExpress>
-    <IISExpressSSLPort />
-    <IISExpressAnonymousAuthentication />
-    <IISExpressWindowsAuthentication />
-    <IISExpressUseClassicPipelineMode />
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="Microsoft.WindowsAzure.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\lib\windowsazure\Microsoft.WindowsAzure.Configuration.dll</HintPath>
-    </Reference>
-    <Reference Include="Microsoft.WindowsAzure.Storage, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\lib\windowsazure\Microsoft.WindowsAzure.Storage.dll</HintPath>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.ComponentModel.DataAnnotations">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
-    <Reference Include="System.Web.DynamicData" />
-    <Reference Include="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
-    </Reference>
-    <Reference Include="System.Web" />
-    <Reference Include="System.Web.Abstractions" />
-    <Reference Include="System.Web.Routing" />
-    <Reference Include="System.Xml" />
-    <Reference Include="System.Configuration" />
-    <Reference Include="System.Xml.Linq" />
-  </ItemGroup>
-  <ItemGroup>
-    <Content Include="Web.config" />
-    <Content Include="Properties\AssemblyInfo.cs" />
-    <Content Include="Module.txt" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\..\..\Orchard\Orchard.Framework.csproj">
-      <Project>{2D1D92BB-4555-4CBE-8D0E-63563D6CE4C6}</Project>
-      <Name>Orchard.Framework</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\..\Core\Orchard.Core.csproj">
-      <Project>{9916839C-39FC-4CEB-A5AF-89CA7E87119F}</Project>
-      <Name>Orchard.Core</Name>
-    </ProjectReference>
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Services\AzureFileSystem.cs" />
-    <Compile Include="Services\CloudBlobContainerExtensions.cs" />
-    <Compile Include="Services\AzureBlobStorageProvider.cs" />
-  </ItemGroup>
-  <ItemGroup />
-  <PropertyGroup>
-    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
-    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
-  </PropertyGroup>
-  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
-  <Import Project="$(VSToolsPath)\WebApplications\Microsoft.WebApplication.targets" Condition="'$(VSToolsPath)' != ''" />
-  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" Condition="false" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target> -->
-  <Target Name="AfterBuild" DependsOnTargets="AfterBuildCompiler">
-    <PropertyGroup>
-      <AreasManifestDir>$(ProjectDir)\..\Manifests</AreasManifestDir>
-    </PropertyGroup>
-    <!-- If this is an area child project, uncomment the following line:
-    <CreateAreaManifest AreaName="$(AssemblyName)" AreaType="Child" AreaPath="$(ProjectDir)" ManifestPath="$(AreasManifestDir)" ContentFiles="@(Content)" />
-    -->
-    <!-- If this is an area parent project, uncomment the following lines:
-    <CreateAreaManifest AreaName="$(AssemblyName)" AreaType="Parent" AreaPath="$(ProjectDir)" ManifestPath="$(AreasManifestDir)" ContentFiles="@(Content)" />
-    <CopyAreaManifests ManifestPath="$(AreasManifestDir)" CrossCopy="false" RenameViews="true" />
-    -->
-  </Target>
-  <Target Name="AfterBuildCompiler" Condition="'$(MvcBuildViews)'=='true'">
-    <AspNetCompiler VirtualPath="temp" PhysicalPath="$(ProjectDir)\..\$(ProjectName)" />
-  </Target>
-  <ProjectExtensions>
-    <VisualStudio>
-      <FlavorProperties GUID="{349c5851-65df-11da-9384-00065b846f21}">
-        <WebProjectProperties>
-          <UseIIS>False</UseIIS>
-          <AutoAssignPort>True</AutoAssignPort>
-          <DevelopmentServerPort>45979</DevelopmentServerPort>
-          <DevelopmentServerVPath>/</DevelopmentServerVPath>
-          <IISUrl>
-          </IISUrl>
-          <NTLMAuthentication>False</NTLMAuthentication>
-          <UseCustomServer>True</UseCustomServer>
-          <CustomServerUrl>http://orchard.codeplex.com</CustomServerUrl>
-          <SaveServerSettingsInUserFile>False</SaveServerSettingsInUserFile>
-        </WebProjectProperties>
-      </FlavorProperties>
-    </VisualStudio>
-  </ProjectExtensions>
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>9.0.30729</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{CBC7993C-57D8-4A6C-992C-19E849DFE71D}</ProjectGuid>
+    <ProjectTypeGuids>{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Orchard.AzureBlobStorage</RootNamespace>
+    <AssemblyName>Orchard.AzureBlobStorage</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <MvcBuildViews>false</MvcBuildViews>
+    <FileUpgradeFlags>
+    </FileUpgradeFlags>
+    <OldToolsVersion>4.0</OldToolsVersion>
+    <UpgradeBackupLocation />
+    <TargetFrameworkProfile />
+    <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="Microsoft.WindowsAzure.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\lib\windowsazure\Microsoft.WindowsAzure.Configuration.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.WindowsAzure.Storage, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\lib\windowsazure\Microsoft.WindowsAzure.Storage.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.ComponentModel.DataAnnotations">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
+    <Reference Include="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Web" />
+    <Reference Include="System.Web.Abstractions" />
+    <Reference Include="System.Web.Routing" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Configuration" />
+    <Reference Include="System.Xml.Linq" />
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Web.config" />
+    <Content Include="Properties\AssemblyInfo.cs" />
+    <Content Include="Module.txt" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\Orchard\Orchard.Framework.csproj">
+      <Project>{2D1D92BB-4555-4CBE-8D0E-63563D6CE4C6}</Project>
+      <Name>Orchard.Framework</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\Core\Orchard.Core.csproj">
+      <Project>{9916839C-39FC-4CEB-A5AF-89CA7E87119F}</Project>
+      <Name>Orchard.Core</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Services\AzureFileSystem.cs" />
+    <Compile Include="Services\CloudBlobContainerExtensions.cs" />
+    <Compile Include="Services\AzureBlobStorageProvider.cs" />
+  </ItemGroup>
+  <ItemGroup />
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+  <Import Project="$(VSToolsPath)\WebApplications\Microsoft.WebApplication.targets" Condition="'$(VSToolsPath)' != ''" />
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" Condition="false" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target> -->
+  <Target Name="AfterBuild" DependsOnTargets="AfterBuildCompiler">
+    <PropertyGroup>
+      <AreasManifestDir>$(ProjectDir)\..\Manifests</AreasManifestDir>
+    </PropertyGroup>
+    <!-- If this is an area child project, uncomment the following line:
+    <CreateAreaManifest AreaName="$(AssemblyName)" AreaType="Child" AreaPath="$(ProjectDir)" ManifestPath="$(AreasManifestDir)" ContentFiles="@(Content)" />
+    -->
+    <!-- If this is an area parent project, uncomment the following lines:
+    <CreateAreaManifest AreaName="$(AssemblyName)" AreaType="Parent" AreaPath="$(ProjectDir)" ManifestPath="$(AreasManifestDir)" ContentFiles="@(Content)" />
+    <CopyAreaManifests ManifestPath="$(AreasManifestDir)" CrossCopy="false" RenameViews="true" />
+    -->
+  </Target>
+  <Target Name="AfterBuildCompiler" Condition="'$(MvcBuildViews)'=='true'">
+    <AspNetCompiler VirtualPath="temp" PhysicalPath="$(ProjectDir)\..\$(ProjectName)" />
+  </Target>
+  <ProjectExtensions>
+    <VisualStudio>
+      <FlavorProperties GUID="{349c5851-65df-11da-9384-00065b846f21}">
+        <WebProjectProperties>
+          <UseIIS>False</UseIIS>
+          <AutoAssignPort>True</AutoAssignPort>
+          <DevelopmentServerPort>45979</DevelopmentServerPort>
+          <DevelopmentServerVPath>/</DevelopmentServerVPath>
+          <IISUrl>
+          </IISUrl>
+          <NTLMAuthentication>False</NTLMAuthentication>
+          <UseCustomServer>True</UseCustomServer>
+          <CustomServerUrl>http://orchard.codeplex.com</CustomServerUrl>
+          <SaveServerSettingsInUserFile>False</SaveServerSettingsInUserFile>
+        </WebProjectProperties>
+      </FlavorProperties>
+    </VisualStudio>
+  </ProjectExtensions>
 </Project>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.AzureBlobStorage/Web.config b/src/Orchard.Web/Modules/Orchard.AzureBlobStorage/Web.config
index 8159d00d6..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.AzureBlobStorage/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.AzureBlobStorage/Web.config
@@ -1,41 +1,37 @@
-<?xml version="1.0"?>
-<configuration>
-
-  <configSections>
-    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-    </sectionGroup>
-  </configSections>
-
-  <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-    <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
-      <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
-        <add namespace="System.Linq"/>
-        <add namespace="System.Collections.Generic"/>
-        <add namespace="Orchard.Mvc.Html"/>
-      </namespaces>
-    </pages>
-  </system.web.webPages.razor>
-
-  <system.web>
-    <compilation targetFramework="4.0">
-      <assemblies>
-        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
-        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
-        <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
-      </assemblies>
-    </compilation>
-  </system.web>
-
-</configuration>
+<?xml version="1.0"?>
+<configuration>
+  <configSections>
+    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+    </sectionGroup>
+  </configSections>
+  <system.web.webPages.razor>
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+    <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
+      <namespaces>
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
+        <add namespace="System.Linq"/>
+        <add namespace="System.Collections.Generic"/>
+        <add namespace="Orchard.Mvc.Html"/>
+      </namespaces>
+    </pages>
+  </system.web.webPages.razor>
+  <system.web>
+    <compilation targetFramework="4.5">
+      <assemblies>
+        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+      </assemblies>
+    </compilation>
+  </system.web>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Blogs/Orchard.Blogs.csproj b/src/Orchard.Web/Modules/Orchard.Blogs/Orchard.Blogs.csproj
index 737ef18fc..309054458 100644
--- a/src/Orchard.Web/Modules/Orchard.Blogs/Orchard.Blogs.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Blogs/Orchard.Blogs.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Blogs</RootNamespace>
     <AssemblyName>Orchard.Blogs</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -51,7 +53,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Blogs/web.config b/src/Orchard.Web/Modules/Orchard.Blogs/web.config
index f69780e0c..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Blogs/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Blogs/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>        
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ModuleCsProj.txt b/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ModuleCsProj.txt
index 2253ad063..94107bcc7 100644
--- a/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ModuleCsProj.txt
+++ b/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ModuleCsProj.txt
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>$$ModuleName$$</RootNamespace>
     <AssemblyName>$$ModuleName$$</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -29,6 +29,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -38,6 +39,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,6 +54,7 @@
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Abstractions" />
     <Reference Include="System.Web.Routing" />
     <Reference Include="System.Xml" />
diff --git a/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ModuleRootWebConfig.txt b/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ModuleRootWebConfig.txt
index 6409b39b9..176d1177b 100644
--- a/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ModuleRootWebConfig.txt
+++ b/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ModuleRootWebConfig.txt
@@ -27,13 +27,13 @@
   </system.web.webPages.razor>
 
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
         <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+		<add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
diff --git a/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/StaticFilesWebConfig.txt b/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/StaticFilesWebConfig.txt
index 56fa41e3e..a9e5b4798 100644
--- a/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/StaticFilesWebConfig.txt
+++ b/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/StaticFilesWebConfig.txt
@@ -3,12 +3,6 @@
   <appSettings>
     <add key="webpages:Enabled" value="false" />
   </appSettings>
-  <system.web>
-    <httpHandlers>
-      <!-- iis6 - for any request in this location, return via managed static file handler -->
-      <add path="*" verb="*" type="System.Web.StaticFileHandler" />
-    </httpHandlers>
-  </system.web>
   <system.webServer>
     <staticContent>
       <clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="7.00:00:00" />
diff --git a/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ViewsWebConfig.txt b/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ViewsWebConfig.txt
index 94399ef58..717656f41 100644
--- a/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ViewsWebConfig.txt
+++ b/src/Orchard.Web/Modules/Orchard.CodeGeneration/CodeGenerationTemplates/ViewsWebConfig.txt
@@ -4,9 +4,7 @@
     <add key="webpages:Enabled" value="false" />
   </appSettings>
   <system.web>
-    <httpHandlers>
-    </httpHandlers>
-
+   
     <!--
         Enabling request validation in view pages would cause validation to occur
         after the input has already been processed by the controller. By default
@@ -30,12 +28,4 @@
     <handlers>
     </handlers>
   </system.webServer>
-  <runtime>
-    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
-      <dependentAssembly>
-        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
-        <bindingRedirect oldVersion="2.0.0.0" newVersion="3.0.0.0" />
-      </dependentAssembly>
-    </assemblyBinding>
-  </runtime>
 </configuration>
diff --git a/src/Orchard.Web/Modules/Orchard.CodeGeneration/Orchard.CodeGeneration.csproj b/src/Orchard.Web/Modules/Orchard.CodeGeneration/Orchard.CodeGeneration.csproj
index d86cfe31e..e895a67a5 100644
--- a/src/Orchard.Web/Modules/Orchard.CodeGeneration/Orchard.CodeGeneration.csproj
+++ b/src/Orchard.Web/Modules/Orchard.CodeGeneration/Orchard.CodeGeneration.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.CodeGeneration</RootNamespace>
     <AssemblyName>Orchard.CodeGeneration</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -21,6 +21,11 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -39,19 +45,23 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.Data" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Commands\CodeGenerationCommands.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.CodeGeneration/web.config b/src/Orchard.Web/Modules/Orchard.CodeGeneration/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.CodeGeneration/web.config
+++ b/src/Orchard.Web/Modules/Orchard.CodeGeneration/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Comments/Orchard.Comments.csproj b/src/Orchard.Web/Modules/Orchard.Comments/Orchard.Comments.csproj
index e962ff292..a00c3d689 100644
--- a/src/Orchard.Web/Modules/Orchard.Comments/Orchard.Comments.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Comments/Orchard.Comments.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Comments</RootNamespace>
     <AssemblyName>Orchard.Comments</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -51,7 +53,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Comments/web.config b/src/Orchard.Web/Modules/Orchard.Comments/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Comments/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Comments/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.ContentPermissions/Orchard.ContentPermissions.csproj b/src/Orchard.Web/Modules/Orchard.ContentPermissions/Orchard.ContentPermissions.csproj
index 87c6ada49..3f2bab2b1 100644
--- a/src/Orchard.Web/Modules/Orchard.ContentPermissions/Orchard.ContentPermissions.csproj
+++ b/src/Orchard.Web/Modules/Orchard.ContentPermissions/Orchard.ContentPermissions.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.ContentPermissions</RootNamespace>
     <AssemblyName>Orchard.ContentPermissions</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.ContentPermissions/Web.config b/src/Orchard.Web/Modules/Orchard.ContentPermissions/Web.config
index 3453e3fec..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.ContentPermissions/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.ContentPermissions/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.ContentPicker/Orchard.ContentPicker.csproj b/src/Orchard.Web/Modules/Orchard.ContentPicker/Orchard.ContentPicker.csproj
index 009b36387..0cec3217e 100644
--- a/src/Orchard.Web/Modules/Orchard.ContentPicker/Orchard.ContentPicker.csproj
+++ b/src/Orchard.Web/Modules/Orchard.ContentPicker/Orchard.ContentPicker.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.ContentPicker</RootNamespace>
     <AssemblyName>Orchard.ContentPicker</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,6 +54,11 @@
       <HintPath>..\..\..\..\lib\nhibernate\NHibernate.dll</HintPath>
     </Reference>
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.ContentPicker/Web.config b/src/Orchard.Web/Modules/Orchard.ContentPicker/Web.config
index 3453e3fec..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.ContentPicker/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.ContentPicker/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.ContentTypes/Orchard.ContentTypes.csproj b/src/Orchard.Web/Modules/Orchard.ContentTypes/Orchard.ContentTypes.csproj
index 8908cf4fd..39d018cd4 100644
--- a/src/Orchard.Web/Modules/Orchard.ContentTypes/Orchard.ContentTypes.csproj
+++ b/src/Orchard.Web/Modules/Orchard.ContentTypes/Orchard.ContentTypes.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.ContentTypes</RootNamespace>
     <AssemblyName>Orchard.ContentTypes</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -25,6 +25,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -35,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -43,20 +45,23 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
     <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.ContentTypes/web.config b/src/Orchard.Web/Modules/Orchard.ContentTypes/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.ContentTypes/web.config
+++ b/src/Orchard.Web/Modules/Orchard.ContentTypes/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.CustomForms/Orchard.CustomForms.csproj b/src/Orchard.Web/Modules/Orchard.CustomForms/Orchard.CustomForms.csproj
index 07e31b67e..cab7a2d4d 100644
--- a/src/Orchard.Web/Modules/Orchard.CustomForms/Orchard.CustomForms.csproj
+++ b/src/Orchard.Web/Modules/Orchard.CustomForms/Orchard.CustomForms.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.CustomForms</RootNamespace>
     <AssemblyName>Orchard.CustomForms</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.CustomForms/Web.config b/src/Orchard.Web/Modules/Orchard.CustomForms/Web.config
index 9e49b2735..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.CustomForms/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.CustomForms/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		    <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.DesignerTools/Orchard.DesignerTools.csproj b/src/Orchard.Web/Modules/Orchard.DesignerTools/Orchard.DesignerTools.csproj
index 5eeaa0c92..e8eb12614 100644
--- a/src/Orchard.Web/Modules/Orchard.DesignerTools/Orchard.DesignerTools.csproj
+++ b/src/Orchard.Web/Modules/Orchard.DesignerTools/Orchard.DesignerTools.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.DesignerTools</RootNamespace>
     <AssemblyName>Orchard.DesignerTools</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,8 +54,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Drawing" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.DesignerTools/Web.config b/src/Orchard.Web/Modules/Orchard.DesignerTools/Web.config
index 256d8d0aa..c2fb7de4a 100644
--- a/src/Orchard.Web/Modules/Orchard.DesignerTools/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.DesignerTools/Web.config
@@ -1,42 +1,38 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
-        <add assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Email/Orchard.Email.csproj b/src/Orchard.Web/Modules/Orchard.Email/Orchard.Email.csproj
index 8e71fb8f9..071616882 100644
--- a/src/Orchard.Web/Modules/Orchard.Email/Orchard.Email.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Email/Orchard.Email.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Email</RootNamespace>
     <AssemblyName>Orchard.Email</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,15 +45,22 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Migrations.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Email/web.config b/src/Orchard.Web/Modules/Orchard.Email/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Email/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Email/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Fields/Orchard.Fields.csproj b/src/Orchard.Web/Modules/Orchard.Fields/Orchard.Fields.csproj
index 38a85bb98..ab51d9025 100644
--- a/src/Orchard.Web/Modules/Orchard.Fields/Orchard.Fields.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Fields/Orchard.Fields.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Fields</RootNamespace>
     <AssemblyName>Orchard.Fields</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Fields/Specs/App.config b/src/Orchard.Web/Modules/Orchard.Fields/Specs/App.config
index 520cffb54..c18a7aefa 100644
--- a/src/Orchard.Web/Modules/Orchard.Fields/Specs/App.config
+++ b/src/Orchard.Web/Modules/Orchard.Fields/Specs/App.config
@@ -1,12 +1,12 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0"?>
 <configuration>
   <configSections>
-    <section name="specFlow" type="TechTalk.SpecFlow.Configuration.ConfigurationSectionHandler, TechTalk.SpecFlow" />
+    <section name="specFlow" type="TechTalk.SpecFlow.Configuration.ConfigurationSectionHandler, TechTalk.SpecFlow"/>
   </configSections>
   <specFlow>
-    <unitTestProvider name="NUnit" />
+    <unitTestProvider name="NUnit"/>
     <stepAssemblies>
-      <stepAssembly assembly="Orchard.Specs" />
+      <stepAssembly assembly="Orchard.Specs"/>
     </stepAssemblies>
   </specFlow>
-</configuration>
\ No newline at end of file
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration>
diff --git a/src/Orchard.Web/Modules/Orchard.Fields/Specs/Orchard.Fields.Specs.csproj b/src/Orchard.Web/Modules/Orchard.Fields/Specs/Orchard.Fields.Specs.csproj
index 0ea38b9a0..0d4affd3a 100644
--- a/src/Orchard.Web/Modules/Orchard.Fields/Specs/Orchard.Fields.Specs.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Fields/Specs/Orchard.Fields.Specs.csproj
@@ -10,8 +10,9 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Fields.Specs</RootNamespace>
     <AssemblyName>Orchard.Fields.Specs</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -21,6 +22,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +31,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="nunit.framework">
diff --git a/src/Orchard.Web/Modules/Orchard.Fields/Web.config b/src/Orchard.Web/Modules/Orchard.Fields/Web.config
index b3636d34c..75edc3639 100644
--- a/src/Orchard.Web/Modules/Orchard.Fields/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Fields/Web.config
@@ -1,23 +1,21 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
@@ -26,16 +24,14 @@
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Forms/Orchard.Forms.csproj b/src/Orchard.Web/Modules/Orchard.Forms/Orchard.Forms.csproj
index c99a864ca..5475fbb3c 100644
--- a/src/Orchard.Web/Modules/Orchard.Forms/Orchard.Forms.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Forms/Orchard.Forms.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Forms</RootNamespace>
     <AssemblyName>Orchard.Forms</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -55,8 +57,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Numerics" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Forms/Web.config b/src/Orchard.Web/Modules/Orchard.Forms/Web.config
index 60e3e2f5c..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.Forms/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Forms/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.ImageEditor/Orchard.ImageEditor.csproj b/src/Orchard.Web/Modules/Orchard.ImageEditor/Orchard.ImageEditor.csproj
index 03dcf6fff..5f83f46a0 100644
--- a/src/Orchard.Web/Modules/Orchard.ImageEditor/Orchard.ImageEditor.csproj
+++ b/src/Orchard.Web/Modules/Orchard.ImageEditor/Orchard.ImageEditor.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.ImageEditor</RootNamespace>
     <AssemblyName>Orchard.ImageEditor</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -34,6 +34,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -43,6 +44,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -51,7 +53,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.ImageEditor/Web.config b/src/Orchard.Web/Modules/Orchard.ImageEditor/Web.config
index 3453e3fec..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.ImageEditor/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.ImageEditor/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.ImportExport/Orchard.ImportExport.csproj b/src/Orchard.Web/Modules/Orchard.ImportExport/Orchard.ImportExport.csproj
index b5f68b600..8f7c04d16 100644
--- a/src/Orchard.Web/Modules/Orchard.ImportExport/Orchard.ImportExport.csproj
+++ b/src/Orchard.Web/Modules/Orchard.ImportExport/Orchard.ImportExport.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.ImportExport</RootNamespace>
     <AssemblyName>Orchard.ImportExport</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -24,6 +24,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -34,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -42,13 +44,18 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
-    <Reference Include="System.Core" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.ImportExport/web.config b/src/Orchard.Web/Modules/Orchard.ImportExport/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.ImportExport/web.config
+++ b/src/Orchard.Web/Modules/Orchard.ImportExport/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Indexing/Orchard.Indexing.csproj b/src/Orchard.Web/Modules/Orchard.Indexing/Orchard.Indexing.csproj
index 691bac440..4f68adf30 100644
--- a/src/Orchard.Web/Modules/Orchard.Indexing/Orchard.Indexing.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Indexing/Orchard.Indexing.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Indexing</RootNamespace>
     <AssemblyName>Orchard.Indexing</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
@@ -24,6 +24,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -34,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -42,11 +44,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
-    <Reference Include="System.Core" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Indexing/web.config b/src/Orchard.Web/Modules/Orchard.Indexing/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Indexing/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Indexing/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Lists/Orchard.Lists.csproj b/src/Orchard.Web/Modules/Orchard.Lists/Orchard.Lists.csproj
index 65354d294..d490264da 100644
--- a/src/Orchard.Web/Modules/Orchard.Lists/Orchard.Lists.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Lists/Orchard.Lists.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Lists</RootNamespace>
     <AssemblyName>Orchard.Lists</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,14 +45,21 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Lists/Web.config b/src/Orchard.Web/Modules/Orchard.Lists/Web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Lists/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Lists/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Localization/Orchard.Localization.csproj b/src/Orchard.Web/Modules/Orchard.Localization/Orchard.Localization.csproj
index fd54c464a..d169e8db6 100644
--- a/src/Orchard.Web/Modules/Orchard.Localization/Orchard.Localization.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Localization/Orchard.Localization.csproj
@@ -13,13 +13,18 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Localization</RootNamespace>
     <AssemblyName>Orchard.Localization</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -29,6 +34,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -38,11 +44,16 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
     <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/src/Orchard.Web/Modules/Orchard.Localization/web.config b/src/Orchard.Web/Modules/Orchard.Localization/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Localization/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Localization/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Media/Orchard.Media.csproj b/src/Orchard.Web/Modules/Orchard.Media/Orchard.Media.csproj
index ef1ba6bf5..ebcc7a783 100644
--- a/src/Orchard.Web/Modules/Orchard.Media/Orchard.Media.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Media/Orchard.Media.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Media</RootNamespace>
     <AssemblyName>Orchard.Media</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Ionic.Zip">
@@ -51,7 +53,12 @@
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Media/web.config b/src/Orchard.Web/Modules/Orchard.Media/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Media/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Media/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.MediaLibrary/Orchard.MediaLibrary.csproj b/src/Orchard.Web/Modules/Orchard.MediaLibrary/Orchard.MediaLibrary.csproj
index dab3a3abc..8f014beb8 100644
--- a/src/Orchard.Web/Modules/Orchard.MediaLibrary/Orchard.MediaLibrary.csproj
+++ b/src/Orchard.Web/Modules/Orchard.MediaLibrary/Orchard.MediaLibrary.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.MediaLibrary</RootNamespace>
     <AssemblyName>Orchard.MediaLibrary</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -34,6 +34,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -43,6 +44,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -55,8 +57,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Drawing" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.MediaLibrary/Web.config b/src/Orchard.Web/Modules/Orchard.MediaLibrary/Web.config
index 7f4f8bee9..c2fb7de4a 100644
--- a/src/Orchard.Web/Modules/Orchard.MediaLibrary/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.MediaLibrary/Web.config
@@ -1,42 +1,38 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
-        <add assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.MediaPicker/Orchard.MediaPicker.csproj b/src/Orchard.Web/Modules/Orchard.MediaPicker/Orchard.MediaPicker.csproj
index 554dad522..a44b9bfb9 100644
--- a/src/Orchard.Web/Modules/Orchard.MediaPicker/Orchard.MediaPicker.csproj
+++ b/src/Orchard.Web/Modules/Orchard.MediaPicker/Orchard.MediaPicker.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.MediaPicker</RootNamespace>
     <AssemblyName>Orchard.MediaPicker</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.MediaPicker/web.config b/src/Orchard.Web/Modules/Orchard.MediaPicker/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.MediaPicker/web.config
+++ b/src/Orchard.Web/Modules/Orchard.MediaPicker/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.MediaProcessing/Orchard.MediaProcessing.csproj b/src/Orchard.Web/Modules/Orchard.MediaProcessing/Orchard.MediaProcessing.csproj
index 5f19f7409..c3843dd75 100644
--- a/src/Orchard.Web/Modules/Orchard.MediaProcessing/Orchard.MediaProcessing.csproj
+++ b/src/Orchard.Web/Modules/Orchard.MediaProcessing/Orchard.MediaProcessing.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.MediaProcessing</RootNamespace>
     <AssemblyName>Orchard.MediaProcessing</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="ImageResizer">
@@ -56,8 +58,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Drawing" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.MediaProcessing/Web.config b/src/Orchard.Web/Modules/Orchard.MediaProcessing/Web.config
index 3453e3fec..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.MediaProcessing/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.MediaProcessing/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Messaging/Orchard.Messaging.csproj b/src/Orchard.Web/Modules/Orchard.Messaging/Orchard.Messaging.csproj
index 80e45194b..fe9a3bc03 100644
--- a/src/Orchard.Web/Modules/Orchard.Messaging/Orchard.Messaging.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Messaging/Orchard.Messaging.csproj
@@ -13,12 +13,18 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Messaging</RootNamespace>
     <AssemblyName>Orchard.Messaging</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -28,6 +34,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -37,12 +44,18 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
     <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Messaging/web.config b/src/Orchard.Web/Modules/Orchard.Messaging/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Messaging/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Messaging/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Migrations/Orchard.Migrations.csproj b/src/Orchard.Web/Modules/Orchard.Migrations/Orchard.Migrations.csproj
index 5e5c9367a..a84e8e604 100644
--- a/src/Orchard.Web/Modules/Orchard.Migrations/Orchard.Migrations.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Migrations/Orchard.Migrations.csproj
@@ -13,13 +13,19 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Migrations</RootNamespace>
     <AssemblyName>Orchard.Migrations</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -30,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -38,18 +45,22 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Commands\DatabaseUpdateCommands.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Migrations/web.config b/src/Orchard.Web/Modules/Orchard.Migrations/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Migrations/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Migrations/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Modules/Orchard.Modules.csproj b/src/Orchard.Web/Modules/Orchard.Modules/Orchard.Modules.csproj
index 5b3da20cb..76a306171 100644
--- a/src/Orchard.Web/Modules/Orchard.Modules/Orchard.Modules.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Modules/Orchard.Modules.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Modules</RootNamespace>
     <AssemblyName>Orchard.Modules</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.2.4.900, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
@@ -52,11 +54,17 @@
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Modules/web.config b/src/Orchard.Web/Modules/Orchard.Modules/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Modules/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Modules/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.MultiTenancy/Orchard.MultiTenancy.csproj b/src/Orchard.Web/Modules/Orchard.MultiTenancy/Orchard.MultiTenancy.csproj
index 9549ca2e1..82f9e46d5 100644
--- a/src/Orchard.Web/Modules/Orchard.MultiTenancy/Orchard.MultiTenancy.csproj
+++ b/src/Orchard.Web/Modules/Orchard.MultiTenancy/Orchard.MultiTenancy.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.MultiTenancy</RootNamespace>
     <AssemblyName>Orchard.MultiTenancy</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
@@ -47,11 +53,17 @@
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
     <Reference Include="System.Data" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.MultiTenancy/web.config b/src/Orchard.Web/Modules/Orchard.MultiTenancy/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.MultiTenancy/web.config
+++ b/src/Orchard.Web/Modules/Orchard.MultiTenancy/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.OutputCache/Orchard.OutputCache.csproj b/src/Orchard.Web/Modules/Orchard.OutputCache/Orchard.OutputCache.csproj
index e3faab2dd..4e47552b4 100644
--- a/src/Orchard.Web/Modules/Orchard.OutputCache/Orchard.OutputCache.csproj
+++ b/src/Orchard.Web/Modules/Orchard.OutputCache/Orchard.OutputCache.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.OutputCache</RootNamespace>
     <AssemblyName>Orchard.OutputCache</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.5.2.830, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
@@ -56,7 +58,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.OutputCache/Web.config b/src/Orchard.Web/Modules/Orchard.OutputCache/Web.config
index fa0251c64..ed2cab149 100644
--- a/src/Orchard.Web/Modules/Orchard.OutputCache/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.OutputCache/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
         <add namespace="System.Linq"/>
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Packaging/Orchard.Packaging.csproj b/src/Orchard.Web/Modules/Orchard.Packaging/Orchard.Packaging.csproj
index 169ccd35a..85c610e2b 100644
--- a/src/Orchard.Web/Modules/Orchard.Packaging/Orchard.Packaging.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Packaging/Orchard.Packaging.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Packaging</RootNamespace>
     <AssemblyName>Orchard.Packaging</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -21,6 +21,11 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -39,6 +45,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -47,16 +54,18 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Data.Services.Client" />
     <Reference Include="System.Runtime.Serialization" />
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
     <Reference Include="System.ServiceModel" />
     <Reference Include="System.Transactions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Packaging/Service References/GalleryServer/Reference.cs b/src/Orchard.Web/Modules/Orchard.Packaging/Service References/GalleryServer/Reference.cs
index a62780f85..6928afd25 100644
--- a/src/Orchard.Web/Modules/Orchard.Packaging/Service References/GalleryServer/Reference.cs	
+++ b/src/Orchard.Web/Modules/Orchard.Packaging/Service References/GalleryServer/Reference.cs	
@@ -1,7 +1,7 @@
 //------------------------------------------------------------------------------
 // <auto-generated>
 //     This code was generated by a tool.
-//     Runtime Version:4.0.30319.17929
+//     Runtime Version:4.0.30319.18051
 //
 //     Changes to this file may cause incorrect behavior and will be lost if
 //     the code is regenerated.
@@ -9,7 +9,7 @@
 //------------------------------------------------------------------------------
 
 // Original file name:
-// Generation date: 8/15/2012 8:56:26 AM
+// Generation date: 23-8-2013 08:43:17
 namespace Orchard.Packaging.GalleryServer
 {
     
diff --git a/src/Orchard.Web/Modules/Orchard.Packaging/web.config b/src/Orchard.Web/Modules/Orchard.Packaging/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Packaging/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Packaging/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Pages/Orchard.Pages.csproj b/src/Orchard.Web/Modules/Orchard.Pages/Orchard.Pages.csproj
index 0c06e19c5..a48970e57 100644
--- a/src/Orchard.Web/Modules/Orchard.Pages/Orchard.Pages.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Pages/Orchard.Pages.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Pages</RootNamespace>
     <AssemblyName>Orchard.Pages</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
@@ -24,6 +24,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -33,6 +34,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -41,11 +43,18 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Pages/web.config b/src/Orchard.Web/Modules/Orchard.Pages/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Pages/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Pages/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Projections/Orchard.Projections.csproj b/src/Orchard.Web/Modules/Orchard.Projections/Orchard.Projections.csproj
index 3eb47bfd0..0a78f682f 100644
--- a/src/Orchard.Web/Modules/Orchard.Projections/Orchard.Projections.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Projections/Orchard.Projections.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Projections</RootNamespace>
     <AssemblyName>Orchard.Projections</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,8 +54,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Numerics" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Projections/Tests/Orchard.Projections.Tests.csproj b/src/Orchard.Web/Modules/Orchard.Projections/Tests/Orchard.Projections.Tests.csproj
index d4869157c..97025a2ac 100644
--- a/src/Orchard.Web/Modules/Orchard.Projections/Tests/Orchard.Projections.Tests.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Projections/Tests/Orchard.Projections.Tests.csproj
@@ -10,8 +10,9 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Projections.Tests</RootNamespace>
     <AssemblyName>Orchard.Projections.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -21,6 +22,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +31,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac">
diff --git a/src/Orchard.Web/Modules/Orchard.Projections/Web.config b/src/Orchard.Web/Modules/Orchard.Projections/Web.config
index 60e3e2f5c..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.Projections/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Projections/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.PublishLater/Orchard.PublishLater.csproj b/src/Orchard.Web/Modules/Orchard.PublishLater/Orchard.PublishLater.csproj
index 4bc443533..f4090c70f 100644
--- a/src/Orchard.Web/Modules/Orchard.PublishLater/Orchard.PublishLater.csproj
+++ b/src/Orchard.Web/Modules/Orchard.PublishLater/Orchard.PublishLater.csproj
@@ -13,13 +13,19 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.PublishLater</RootNamespace>
     <AssemblyName>Orchard.PublishLater</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -30,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -38,13 +45,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.PublishLater/web.config b/src/Orchard.Web/Modules/Orchard.PublishLater/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.PublishLater/web.config
+++ b/src/Orchard.Web/Modules/Orchard.PublishLater/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Recipes/Orchard.Recipes.csproj b/src/Orchard.Web/Modules/Orchard.Recipes/Orchard.Recipes.csproj
index a58ddba13..3c3d0ce06 100644
--- a/src/Orchard.Web/Modules/Orchard.Recipes/Orchard.Recipes.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Recipes/Orchard.Recipes.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Recipes</RootNamespace>
     <AssemblyName>Orchard.Recipes</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -24,6 +24,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -34,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -42,20 +44,26 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac">
       <HintPath>..\..\..\..\lib\autofac\Autofac.dll</HintPath>
     </Reference>
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
-    <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Web" />
     <Reference Include="System.Xml" />
     <Reference Include="System.Configuration" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="Module.txt" />
diff --git a/src/Orchard.Web/Modules/Orchard.Recipes/Services/RecipeJournalManager.cs b/src/Orchard.Web/Modules/Orchard.Recipes/Services/RecipeJournalManager.cs
index d831fb00d..3afd2e8ba 100644
--- a/src/Orchard.Web/Modules/Orchard.Recipes/Services/RecipeJournalManager.cs
+++ b/src/Orchard.Web/Modules/Orchard.Recipes/Services/RecipeJournalManager.cs
@@ -14,12 +14,6 @@ namespace Orchard.Recipes.Services {
         private const string WebConfig = 
 @"
 <configuration>
-  <system.web>
-    <httpHandlers>
-      <clear />
-      <add path=""*"" verb=""*"" type=""System.Web.HttpNotFoundHandler""/>
-    </httpHandlers>
-  </system.web>
   <system.webServer>
     <handlers accessPolicy=""Script"">
       <clear/>
diff --git a/src/Orchard.Web/Modules/Orchard.Recipes/web.config b/src/Orchard.Web/Modules/Orchard.Recipes/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Recipes/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Recipes/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Roles/Orchard.Roles.csproj b/src/Orchard.Web/Modules/Orchard.Roles/Orchard.Roles.csproj
index 6e92f3250..f90d0bf6e 100644
--- a/src/Orchard.Web/Modules/Orchard.Roles/Orchard.Roles.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Roles/Orchard.Roles.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Roles</RootNamespace>
     <AssemblyName>Orchard.Roles</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,12 +45,18 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Roles/web.config b/src/Orchard.Web/Modules/Orchard.Roles/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Roles/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Roles/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Rules/Orchard.Rules.csproj b/src/Orchard.Web/Modules/Orchard.Rules/Orchard.Rules.csproj
index cc7412a33..b381f0848 100644
--- a/src/Orchard.Web/Modules/Orchard.Rules/Orchard.Rules.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Rules/Orchard.Rules.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Rules</RootNamespace>
     <AssemblyName>Orchard.Rules</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -52,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Rules/Web.config b/src/Orchard.Web/Modules/Orchard.Rules/Web.config
index ce3af9538..19ffacb20 100644
--- a/src/Orchard.Web/Modules/Orchard.Rules/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Rules/Web.config
@@ -1,24 +1,22 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
@@ -28,17 +26,15 @@
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Scripting.CSharp/Orchard.Scripting.CSharp.csproj b/src/Orchard.Web/Modules/Orchard.Scripting.CSharp/Orchard.Scripting.CSharp.csproj
index c2372b8d7..93232fed2 100644
--- a/src/Orchard.Web/Modules/Orchard.Scripting.CSharp/Orchard.Scripting.CSharp.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Scripting.CSharp/Orchard.Scripting.CSharp.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Scripting.CSharp</RootNamespace>
     <AssemblyName>Orchard.Scripting.CSharp</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -34,6 +34,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -43,6 +44,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -54,7 +56,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Scripting.CSharp/Web.config b/src/Orchard.Web/Modules/Orchard.Scripting.CSharp/Web.config
index 3453e3fec..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.Scripting.CSharp/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Scripting.CSharp/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Scripting.Dlr/Orchard.Scripting.Dlr.csproj b/src/Orchard.Web/Modules/Orchard.Scripting.Dlr/Orchard.Scripting.Dlr.csproj
index 3d1d33919..2ac593dce 100644
--- a/src/Orchard.Web/Modules/Orchard.Scripting.Dlr/Orchard.Scripting.Dlr.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Scripting.Dlr/Orchard.Scripting.Dlr.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Scripting.Dlr</RootNamespace>
     <AssemblyName>Orchard.Scripting.Dlr</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -21,6 +21,11 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -39,6 +45,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="IronRuby, Version=1.1.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
@@ -63,13 +70,16 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc">
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Scripting.Dlr/web.config b/src/Orchard.Web/Modules/Orchard.Scripting.Dlr/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Scripting.Dlr/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Scripting.Dlr/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Scripting/Orchard.Scripting.csproj b/src/Orchard.Web/Modules/Orchard.Scripting/Orchard.Scripting.csproj
index 4b8f93eda..eff6fd46d 100644
--- a/src/Orchard.Web/Modules/Orchard.Scripting/Orchard.Scripting.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Scripting/Orchard.Scripting.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Scripting</RootNamespace>
     <AssemblyName>Orchard.Scripting</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -21,6 +21,11 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>4.0</OldToolsVersion>
+    <TargetFrameworkProfile />
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -39,17 +45,21 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc">
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Ast\AbstractSyntaxTree.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Scripting/web.config b/src/Orchard.Web/Modules/Orchard.Scripting/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Scripting/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Scripting/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Search/Orchard.Search.csproj b/src/Orchard.Web/Modules/Orchard.Search/Orchard.Search.csproj
index 36300156d..ba4ba82ae 100644
--- a/src/Orchard.Web/Modules/Orchard.Search/Orchard.Search.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Search/Orchard.Search.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Search</RootNamespace>
     <AssemblyName>Orchard.Search</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -25,6 +25,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -35,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -43,18 +45,22 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc">
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Commands\SearchCommands.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Search/web.config b/src/Orchard.Web/Modules/Orchard.Search/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Search/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Search/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Setup/Orchard.Setup.csproj b/src/Orchard.Web/Modules/Orchard.Setup/Orchard.Setup.csproj
index f0ba33f90..7fd8edfb7 100644
--- a/src/Orchard.Web/Modules/Orchard.Setup/Orchard.Setup.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Setup/Orchard.Setup.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Setup</RootNamespace>
     <AssemblyName>Orchard.Setup</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.1.13.813, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
@@ -55,7 +57,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
@@ -63,6 +70,7 @@
     </Reference>
     <Reference Include="System.Configuration" />
     <Reference Include="System.Xml" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Annotations\SetupValidationAttributes.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Setup/web.config b/src/Orchard.Web/Modules/Orchard.Setup/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Setup/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Setup/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Tags/Orchard.Tags.csproj b/src/Orchard.Web/Modules/Orchard.Tags/Orchard.Tags.csproj
index 74ed82555..282ab8a36 100644
--- a/src/Orchard.Web/Modules/Orchard.Tags/Orchard.Tags.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Tags/Orchard.Tags.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Tags</RootNamespace>
     <AssemblyName>Orchard.Tags</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,12 +45,18 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Tags/web.config b/src/Orchard.Web/Modules/Orchard.Tags/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Tags/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Tags/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.TaskLease/Orchard.TaskLease.csproj b/src/Orchard.Web/Modules/Orchard.TaskLease/Orchard.TaskLease.csproj
index e13fd77ff..3428126cd 100644
--- a/src/Orchard.Web/Modules/Orchard.TaskLease/Orchard.TaskLease.csproj
+++ b/src/Orchard.Web/Modules/Orchard.TaskLease/Orchard.TaskLease.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.TaskLease</RootNamespace>
     <AssemblyName>Orchard.TaskLease</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -48,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.TaskLease/Web.config b/src/Orchard.Web/Modules/Orchard.TaskLease/Web.config
index 60e3e2f5c..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.TaskLease/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.TaskLease/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Taxonomies/Orchard.Taxonomies.csproj b/src/Orchard.Web/Modules/Orchard.Taxonomies/Orchard.Taxonomies.csproj
index b4a017dc1..7f5a599cd 100644
--- a/src/Orchard.Web/Modules/Orchard.Taxonomies/Orchard.Taxonomies.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Taxonomies/Orchard.Taxonomies.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Taxonomies</RootNamespace>
     <AssemblyName>Orchard.Taxonomies</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -25,6 +25,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -34,6 +35,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -42,6 +44,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -49,20 +52,20 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
-    <Reference Include="System.Core">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
-    <Reference Include="System.Xml.Linq">
-      <RequiredTargetFramework>3.5</RequiredTargetFramework>
-    </Reference>
     <Reference Include="System.Web" />
     <Reference Include="System.Web.Abstractions" />
     <Reference Include="System.Web.Routing" />
     <Reference Include="System.Xml" />
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Taxonomies/web.config b/src/Orchard.Web/Modules/Orchard.Taxonomies/web.config
index d625c3ac8..c6c75592b 100644
--- a/src/Orchard.Web/Modules/Orchard.Taxonomies/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Taxonomies/web.config
@@ -1,23 +1,21 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
@@ -25,16 +23,14 @@
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Themes/Orchard.Themes.csproj b/src/Orchard.Web/Modules/Orchard.Themes/Orchard.Themes.csproj
index 7db1f19c6..ebf036218 100644
--- a/src/Orchard.Web/Modules/Orchard.Themes/Orchard.Themes.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Themes/Orchard.Themes.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Themes</RootNamespace>
     <AssemblyName>Orchard.Themes</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -20,6 +20,11 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
+    <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -30,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -39,15 +45,22 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
diff --git a/src/Orchard.Web/Modules/Orchard.Themes/web.config b/src/Orchard.Web/Modules/Orchard.Themes/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Themes/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Themes/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Tokens/Orchard.Tokens.csproj b/src/Orchard.Web/Modules/Orchard.Tokens/Orchard.Tokens.csproj
index 8d89d4f02..768e3486f 100644
--- a/src/Orchard.Web/Modules/Orchard.Tokens/Orchard.Tokens.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Tokens/Orchard.Tokens.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Tokens</RootNamespace>
     <AssemblyName>Orchard.Tokens</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -48,8 +54,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Drawing" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Tokens/Tests/Orchard.Tokens.Tests.csproj b/src/Orchard.Web/Modules/Orchard.Tokens/Tests/Orchard.Tokens.Tests.csproj
index 54ed84b01..d9e00f4ca 100644
--- a/src/Orchard.Web/Modules/Orchard.Tokens/Tests/Orchard.Tokens.Tests.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Tokens/Tests/Orchard.Tokens.Tests.csproj
@@ -10,8 +10,9 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Tokens.Tests</RootNamespace>
     <AssemblyName>Orchard.Tokens.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -21,6 +22,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +31,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.2.4.900, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
diff --git a/src/Orchard.Web/Modules/Orchard.Tokens/Web.config b/src/Orchard.Web/Modules/Orchard.Tokens/Web.config
index 60e3e2f5c..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.Tokens/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Tokens/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Users/Orchard.Users.csproj b/src/Orchard.Web/Modules/Orchard.Users/Orchard.Users.csproj
index 7878803b5..2248f2fe0 100644
--- a/src/Orchard.Web/Modules/Orchard.Users/Orchard.Users.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Users/Orchard.Users.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Users</RootNamespace>
     <AssemblyName>Orchard.Users</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -51,8 +53,12 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
     <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Users/web.config b/src/Orchard.Web/Modules/Orchard.Users/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Users/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Users/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Warmup/Orchard.Warmup.csproj b/src/Orchard.Web/Modules/Orchard.Warmup/Orchard.Warmup.csproj
index f8de50384..c8b56dba8 100644
--- a/src/Orchard.Web/Modules/Orchard.Warmup/Orchard.Warmup.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Warmup/Orchard.Warmup.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Warmup</RootNamespace>
     <AssemblyName>Orchard.Warmup</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -21,6 +21,10 @@
     </UpgradeBackupLocation>
     <TargetFrameworkProfile />
     <UseIISExpress>false</UseIISExpress>
+    <IISExpressSSLPort />
+    <IISExpressAnonymousAuthentication />
+    <IISExpressWindowsAuthentication />
+    <IISExpressUseClassicPipelineMode />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -31,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -40,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -48,7 +54,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Warmup/Web.config b/src/Orchard.Web/Modules/Orchard.Warmup/Web.config
index 60e3e2f5c..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.Warmup/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Warmup/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Widgets/Orchard.Widgets.csproj b/src/Orchard.Web/Modules/Orchard.Widgets/Orchard.Widgets.csproj
index e357b8a46..a5b269ad7 100644
--- a/src/Orchard.Web/Modules/Orchard.Widgets/Orchard.Widgets.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Widgets/Orchard.Widgets.csproj
@@ -13,7 +13,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Widgets</RootNamespace>
     <AssemblyName>Orchard.Widgets</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <UseIISExpress>false</UseIISExpress>
     <FileUpgradeFlags>
@@ -25,6 +25,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -35,6 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -43,11 +45,17 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Widgets/web.config b/src/Orchard.Web/Modules/Orchard.Widgets/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.Widgets/web.config
+++ b/src/Orchard.Web/Modules/Orchard.Widgets/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Workflows/Orchard.Workflows.csproj b/src/Orchard.Web/Modules/Orchard.Workflows/Orchard.Workflows.csproj
index 692a65664..0b519d3d2 100644
--- a/src/Orchard.Web/Modules/Orchard.Workflows/Orchard.Workflows.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Workflows/Orchard.Workflows.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Workflows</RootNamespace>
     <AssemblyName>Orchard.Workflows</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -34,6 +34,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -43,6 +44,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -55,11 +57,15 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Net.Http, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetwebapi\System.Net.Http.dll</HintPath>
     </Reference>
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/Orchard.Workflows/Web.config b/src/Orchard.Web/Modules/Orchard.Workflows/Web.config
index 3453e3fec..c072dea70 100644
--- a/src/Orchard.Web/Modules/Orchard.Workflows/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Workflows/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.jQuery/Orchard.jQuery.csproj b/src/Orchard.Web/Modules/Orchard.jQuery/Orchard.jQuery.csproj
index 8a5514f2b..2990ce4a9 100644
--- a/src/Orchard.Web/Modules/Orchard.jQuery/Orchard.jQuery.csproj
+++ b/src/Orchard.Web/Modules/Orchard.jQuery/Orchard.jQuery.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.jQuery</RootNamespace>
     <AssemblyName>Orchard.jQuery</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,13 +45,20 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="Styles\colorbox.css" />
diff --git a/src/Orchard.Web/Modules/Orchard.jQuery/web.config b/src/Orchard.Web/Modules/Orchard.jQuery/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/Orchard.jQuery/web.config
+++ b/src/Orchard.Web/Modules/Orchard.jQuery/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/SysCache/SysCache.csproj b/src/Orchard.Web/Modules/SysCache/SysCache.csproj
index 7bb9cd9cf..b30c44ef5 100644
--- a/src/Orchard.Web/Modules/SysCache/SysCache.csproj
+++ b/src/Orchard.Web/Modules/SysCache/SysCache.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>SysCache</RootNamespace>
     <AssemblyName>SysCache</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,6 +45,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -60,7 +62,11 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
diff --git a/src/Orchard.Web/Modules/SysCache/Web.config b/src/Orchard.Web/Modules/SysCache/Web.config
index 3453e3fec..c072dea70 100644
--- a/src/Orchard.Web/Modules/SysCache/Web.config
+++ b/src/Orchard.Web/Modules/SysCache/Web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-		<add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-		<add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/TinyMce/TinyMce.csproj b/src/Orchard.Web/Modules/TinyMce/TinyMce.csproj
index 7eb78bafd..fa0b1d068 100644
--- a/src/Orchard.Web/Modules/TinyMce/TinyMce.csproj
+++ b/src/Orchard.Web/Modules/TinyMce/TinyMce.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>TinyMce</RootNamespace>
     <AssemblyName>TinyMce</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,14 +45,21 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Web" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="Module.txt" />
diff --git a/src/Orchard.Web/Modules/TinyMce/web.config b/src/Orchard.Web/Modules/TinyMce/web.config
index aa97a4447..669b56510 100644
--- a/src/Orchard.Web/Modules/TinyMce/web.config
+++ b/src/Orchard.Web/Modules/TinyMce/web.config
@@ -1,41 +1,37 @@
 <?xml version="1.0"?>
 <configuration>
-
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
-</configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Upgrade/App.Config b/src/Orchard.Web/Modules/Upgrade/App.Config
new file mode 100644
index 000000000..9c3d200cc
--- /dev/null
+++ b/src/Orchard.Web/Modules/Upgrade/App.Config
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Upgrade/Upgrade.csproj b/src/Orchard.Web/Modules/Upgrade/Upgrade.csproj
index 48685b90a..c84e8208c 100644
--- a/src/Orchard.Web/Modules/Upgrade/Upgrade.csproj
+++ b/src/Orchard.Web/Modules/Upgrade/Upgrade.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Upgrade</RootNamespace>
     <AssemblyName>Upgrade</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -30,6 +30,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -39,6 +40,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.CSharp" />
@@ -131,6 +133,9 @@
   <ItemGroup>
     <Content Include="Views\ContentPicker\Index.cshtml" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="App.Config" />
+  </ItemGroup>
   <PropertyGroup>
     <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
     <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
diff --git a/src/Orchard.Web/Modules/Upgrade/Web.config b/src/Orchard.Web/Modules/Upgrade/Web.config
index 7f4f8bee9..5e20dd3e3 100644
--- a/src/Orchard.Web/Modules/Upgrade/Web.config
+++ b/src/Orchard.Web/Modules/Upgrade/Web.config
@@ -27,13 +27,13 @@
   </system.web.webPages.razor>
 
   <system.web>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
         <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
       </assemblies>
     </compilation>
diff --git a/src/Orchard.Web/Orchard.Web.csproj b/src/Orchard.Web/Orchard.Web.csproj
index 21fc895ba..fddb845a9 100644
--- a/src/Orchard.Web/Orchard.Web.csproj
+++ b/src/Orchard.Web/Orchard.Web.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Web</RootNamespace>
     <AssemblyName>Orchard.Web</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -37,6 +37,7 @@
     <CodeAnalysisRuleSet>..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
     <FilesToIncludeForPublish>AllFilesInProjectFolder</FilesToIncludeForPublish>
     <PackageAsSingleFile>false</PackageAsSingleFile>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -46,6 +47,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.6.3.862, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
@@ -83,9 +85,9 @@
     <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
     <Reference Include="System.Web.Entity" />
-    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web" />
     <Reference Include="System.Web.Abstractions" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Helpers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\lib\aspnetmvc\System.Web.Helpers.dll</HintPath>
diff --git a/src/Orchard.Web/Themes/Themes.csproj b/src/Orchard.Web/Themes/Themes.csproj
index 47b96e727..a36b1cd78 100644
--- a/src/Orchard.Web/Themes/Themes.csproj
+++ b/src/Orchard.Web/Themes/Themes.csproj
@@ -12,7 +12,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Themes</RootNamespace>
     <AssemblyName>Themes</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <MvcBuildViews>false</MvcBuildViews>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -35,6 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -44,13 +45,20 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Web.ApplicationServices" />
+    <Reference Include="System.Web.DynamicData" />
+    <Reference Include="System.Web.Entity" />
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
+    <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
diff --git a/src/Orchard.Web/Themes/Web.config b/src/Orchard.Web/Themes/Web.config
index 2e4d2c96e..d6871fc7f 100644
--- a/src/Orchard.Web/Themes/Web.config
+++ b/src/Orchard.Web/Themes/Web.config
@@ -2,61 +2,53 @@
 <configuration>
   <configSections>
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
-      <remove name="host" />
-      <remove name="pages" />
-      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
-      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
+      <remove name="host"/>
+      <remove name="pages"/>
+      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
+      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false"/>
     </sectionGroup>
   </configSections>
-
   <appSettings>
-    <add key="webpages:Enabled" value="false" />
+    <add key="webpages:Enabled" value="false"/>
   </appSettings>
-
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     <pages pageBaseType="Orchard.Mvc.ViewEngines.Razor.WebViewPage">
       <namespaces>
-        <add namespace="System.Web.Mvc" />
-        <add namespace="System.Web.Mvc.Ajax" />
-        <add namespace="System.Web.Mvc.Html" />
-        <add namespace="System.Web.Routing" />
-        <add namespace="System.Web.WebPages" />
+        <add namespace="System.Web.Mvc"/>
+        <add namespace="System.Web.Mvc.Ajax"/>
+        <add namespace="System.Web.Mvc.Html"/>
+        <add namespace="System.Web.Routing"/>
+        <add namespace="System.Web.WebPages"/>
         <add namespace="System.Linq"/>
         <add namespace="System.Collections.Generic"/>
         <add namespace="Orchard.Mvc.Html"/>
       </namespaces>
     </pages>
   </system.web.webPages.razor>
-
   <system.web>
-      <!--
+    <!--
         Enabling request validation in view pages would cause validation to occur
         after the input has already been processed by the controller. By default
         MVC performs request validation before a controller processes the input.
         To change this behavior apply the ValidateInputAttribute to a
         controller or action.
     -->
-    <pages
-        validateRequest="false"
-        pageParserFilterType="System.Web.Mvc.ViewTypeParserFilter, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL"
-        pageBaseType="System.Web.Mvc.ViewPage, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL"
-        userControlBaseType="System.Web.Mvc.ViewUserControl, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+    <pages validateRequest="false" pageParserFilterType="System.Web.Mvc.ViewTypeParserFilter, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" pageBaseType="System.Web.Mvc.ViewPage, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" userControlBaseType="System.Web.Mvc.ViewUserControl, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <controls>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" namespace="System.Web.Mvc" tagPrefix="mvc" />
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" namespace="System.Web.Mvc" tagPrefix="mvc"/>
       </controls>
     </pages>
-    <compilation targetFramework="4.0">
+    <compilation targetFramework="4.5">
       <assemblies>
         <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
         <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
-        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
-        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+        <add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
     </compilation>
   </system.web>
-
   <system.webServer>
     <validation validateIntegratedModeConfiguration="false"/>
     <handlers accessPolicy="Script,Read">
@@ -64,16 +56,8 @@
         iis7 - for any request to a file exists on disk, return it via native http module.
         accessPolicy 'Script' is to allow for a managed 404 page.
         -->
-      <add name="ThemePreviewImage" path="*/Theme.png" verb="*" modules="StaticFileModule" preCondition="integratedMode" resourceType="File" requireAccess="Read" />
-      <add name="ThemeZonePreviewImage" path="*/ThemeZonePreview.png" verb="*" modules="StaticFileModule" preCondition="integratedMode" resourceType="File" requireAccess="Read" />
+      <add name="ThemePreviewImage" path="*/Theme.png" verb="*" modules="StaticFileModule" preCondition="integratedMode" resourceType="File" requireAccess="Read"/>
+      <add name="ThemeZonePreviewImage" path="*/ThemeZonePreview.png" verb="*" modules="StaticFileModule" preCondition="integratedMode" resourceType="File" requireAccess="Read"/>
     </handlers>
   </system.webServer>
-  <runtime>
-    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
-      <dependentAssembly>
-        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
-        <bindingRedirect oldVersion="2.0.0.0" newVersion="3.0.0.0" />
-      </dependentAssembly>
-    </assemblyBinding>
-  </runtime>
 </configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Web.config b/src/Orchard.Web/Web.config
index 94019fc25..1f46d1695 100644
--- a/src/Orchard.Web/Web.config
+++ b/src/Orchard.Web/Web.config
@@ -43,10 +43,17 @@
   <system.transactions>
     <defaultSettings timeout="00:30:00"/>
   </system.transactions>
+  <!--
+    For a description of web.config changes for .NET 4.5 see http://go.microsoft.com/fwlink/?LinkId=235367.
+
+    The following attributes is set on the <httpRuntime> tag: targetFramework="4.5"
+    for more info: http://blogs.msdn.com/b/webdev/archive/2012/11/19/all-about-httpruntime-targetframework.aspx
+    
+  -->
   <system.web>
     <!--<trust level="Medium" originUrl="" />-->
     <!-- Accept file uploads up to 64 Mb -->
-    <httpRuntime requestValidationMode="2.0" maxRequestLength="65536" /> 
+    <httpRuntime targetFramework="4.5" requestValidationMode="2.0" maxRequestLength="65536"/>
     <!-- 
             Set compilation debug="true" to insert debugging 
             symbols into the compiled page. Because this 
@@ -98,7 +105,7 @@
             to be displayed in place of a error stack trace.
     -->
     <customErrors mode="RemoteOnly"/>
-    <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
+    <pages>
       <namespaces>
         <add namespace="System.Web.Mvc"/>
         <add namespace="System.Web.Mvc.Ajax"/>
@@ -110,10 +117,7 @@
       </namespaces>
     </pages>
   </system.web>
-  <!-- 
-        The system.webServer section is required for running ASP.NET AJAX under Internet
-        Information Services 7.0.  It is not necessary for previous version of IIS.
-  -->
+
   <system.webServer>
     <validation validateIntegratedModeConfiguration="false"/>
     <modules runAllManagedModulesForAllRequests="false">
@@ -138,7 +142,7 @@
     <security>
       <requestFiltering>
         <!-- Accept file uploads up to 64 Mb -->
-        <requestLimits maxAllowedContentLength="67108864" />
+        <requestLimits maxAllowedContentLength="67108864"/>
       </requestFiltering>
     </security>
   </system.webServer>
diff --git a/src/Orchard/Orchard.Framework.csproj b/src/Orchard/Orchard.Framework.csproj
index 6c04b2476..c65901a7c 100644
--- a/src/Orchard/Orchard.Framework.csproj
+++ b/src/Orchard/Orchard.Framework.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard</RootNamespace>
     <AssemblyName>Orchard.Framework</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -42,6 +42,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -51,6 +52,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autofac, Version=2.1.13.813, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
diff --git a/src/Orchard/app.config b/src/Orchard/app.config
index 2b798a501..9cc799e14 100644
--- a/src/Orchard/app.config
+++ b/src/Orchard/app.config
@@ -8,4 +8,4 @@
 			</dependentAssembly>
 		</assemblyBinding>
 	</runtime>
-<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration>
diff --git a/src/Tools/MSBuild.Orchard.Tasks/MSBuild.Orchard.Tasks.csproj b/src/Tools/MSBuild.Orchard.Tasks/MSBuild.Orchard.Tasks.csproj
index b7d9d3162..dd86ce56e 100644
--- a/src/Tools/MSBuild.Orchard.Tasks/MSBuild.Orchard.Tasks.csproj
+++ b/src/Tools/MSBuild.Orchard.Tasks/MSBuild.Orchard.Tasks.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>MSBuild.Orchard.Tasks</RootNamespace>
     <AssemblyName>MSBuild.Orchard.Tasks</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -42,6 +42,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -51,6 +52,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.Build.Framework" />
diff --git a/src/Tools/Orchard.Tests/Orchard.Tests.csproj b/src/Tools/Orchard.Tests/Orchard.Tests.csproj
index 8ba30e6d2..49b38a9cd 100644
--- a/src/Tools/Orchard.Tests/Orchard.Tests.csproj
+++ b/src/Tools/Orchard.Tests/Orchard.Tests.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard.Tests</RootNamespace>
     <AssemblyName>Orchard.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -43,6 +43,7 @@
     <WarningLevel>4</WarningLevel>
     <PlatformTarget>x86</PlatformTarget>
     <CodeAnalysisRuleSet>..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -52,6 +53,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Moq, Version=4.0.812.4, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
diff --git a/src/Tools/Orchard/Orchard.csproj b/src/Tools/Orchard/Orchard.csproj
index 76d2a8520..b4e6a1f25 100644
--- a/src/Tools/Orchard/Orchard.csproj
+++ b/src/Tools/Orchard/Orchard.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Orchard</RootNamespace>
     <AssemblyName>Orchard</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
@@ -44,6 +44,7 @@
     <UseVSHostingProcess>true</UseVSHostingProcess>
     <PlatformTarget>AnyCPU</PlatformTarget>
     <CodeAnalysisRuleSet>..\..\OrchardBasicCorrectness.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -54,6 +55,7 @@
     <WarningLevel>4</WarningLevel>
     <PlatformTarget>AnyCPU</PlatformTarget>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/src/Tools/Orchard/app.config b/src/Tools/Orchard/app.config
index 21ac8f3ab..f83b6bcc2 100644
--- a/src/Tools/Orchard/app.config
+++ b/src/Tools/Orchard/app.config
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <configuration>
   <startup>
-    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
   </startup>
 </configuration>