diff --git a/src/Orchard/FileSystems/Dependencies/WebFormsExtensionsVirtualPathProvider.cs b/src/Orchard/FileSystems/Dependencies/WebFormsExtensionsVirtualPathProvider.cs
index b7799a0ea..5874da5df 100644
--- a/src/Orchard/FileSystems/Dependencies/WebFormsExtensionsVirtualPathProvider.cs
+++ b/src/Orchard/FileSystems/Dependencies/WebFormsExtensionsVirtualPathProvider.cs
@@ -9,6 +9,15 @@ using Orchard.FileSystems.VirtualPath;
 using Orchard.Logging;
 
 namespace Orchard.FileSystems.Dependencies {
+    /// <summary>
+    /// The purpose of this class is to insert assembly directives in WebForms views served
+    /// from ~/Modules and ~/Themes. Inserting these directives ensures that the WebForms
+    /// build provider will add proper assembly references when calling the compiler.
+    /// For example, if Module A depends on Module Bar and some other 3rd party DLL "Foo.dll",
+    /// we will insert the following assembly directives to the view file when server:
+    /// &lt;%@ Assembly Src="~/Modules/Bar/Bar.csproj"%&gt;
+    /// &lt;%@ Assembly Name="Foo"%&gt;
+    /// </summary>
     public class WebFormVirtualPathProvider : VirtualPathProvider, ICustomVirtualPathProvider {
         private readonly IDependenciesFolder _dependenciesFolder;
         private readonly IEnumerable<IExtensionLoader> _loaders;
diff --git a/src/Orchard/Mvc/ViewEngines/Razor/IRazorCompilationEvents.cs b/src/Orchard/Mvc/ViewEngines/Razor/IRazorCompilationEvents.cs
index 172f38bd5..44ece4e76 100644
--- a/src/Orchard/Mvc/ViewEngines/Razor/IRazorCompilationEvents.cs
+++ b/src/Orchard/Mvc/ViewEngines/Razor/IRazorCompilationEvents.cs
@@ -12,6 +12,15 @@ namespace Orchard.Mvc.ViewEngines.Razor {
         void CodeGenerationCompleted(RazorBuildProvider provider, CodeGenerationCompleteEventArgs e);
     }
 
+    /// <summary>
+    /// The purpose of this class is to notify the Razor View Engine of Module and Theme
+    /// dependencies when compiling Views, so that the Razor Views build provider will add proper 
+    /// assembly references when calling the compiler.
+    /// For example, if Module A depends on Module Bar and some other 3rd party DLL "Foo.dll",
+    /// we will notify the Razor View Engine of the following dependencies:
+    /// * BuildManager.GetCompiledAssembly("~/Modules/Bar/Bar.csproj");
+    /// * Assembly.Load("Foo");
+    /// </summary>
     public class DefaultRazorCompilationEvents : IRazorCompilationEvents {
         private readonly IDependenciesFolder _dependenciesFolder;
         private readonly IBuildManager _buildManager;