diff --git a/src/Orchard/Environment/Extensions/Compilers/CSharpExtensionDirectoryCompiler.cs b/src/Orchard/Environment/Extensions/Compilers/CSharpExtensionDirectoryCompiler.cs
deleted file mode 100644
index d90f55bf9..000000000
--- a/src/Orchard/Environment/Extensions/Compilers/CSharpExtensionDirectoryCompiler.cs
+++ /dev/null
@@ -1,56 +0,0 @@
-using System;
-using System.CodeDom.Compiler;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using System.Security;
-using System.Web.Compilation;
-
-namespace Orchard.Environment.Extensions.Compilers {
-    /// <summary>
-    /// Compile a C# extension into an assembly given a directory location
-    /// Note: Currently not used...
-    /// </summary>
-    public class CSharpExtensionDirectoryCompiler {
-        private readonly IBuildManager _buildManager;
-
-        public CSharpExtensionDirectoryCompiler(IBuildManager buildManager) {
-            _buildManager = buildManager;
-        }
-
-        public CompilerResults CompileProject(string location) {
-            var codeProvider = CodeDomProvider.CreateProvider("cs");
-
-            var references = GetAssemblyReferenceNames();
-            var options = new CompilerParameters(references.ToArray());
-
-            var fileNames = GetSourceFileNames(location);
-            var results = codeProvider.CompileAssemblyFromFile(options, fileNames.ToArray());
-            return results;
-        }
-
-        private IEnumerable<string> GetAssemblyReferenceNames() {
-            return _buildManager
-                .GetReferencedAssemblies()
-                .Select(x => x.Location)
-                .Where(x => !string.IsNullOrEmpty(x))
-                .Distinct(StringComparer.OrdinalIgnoreCase);
-        }
-
-        private IEnumerable<string> GetSourceFileNames(string path) {
-            foreach (var file in Directory.GetFiles(path, "*.cs")) {
-                yield return file;
-            }
-
-            foreach (var folder in Directory.GetDirectories(path)) {
-                if (Path.GetFileName(folder).StartsWith("."))
-                    continue;
-
-                foreach (var file in GetSourceFileNames(folder)) {
-                    yield return file;
-                }
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/Orchard/Environment/Extensions/Compilers/CSharpProjectFullTrustCompiler.cs b/src/Orchard/Environment/Extensions/Compilers/CSharpProjectFullTrustCompiler.cs
deleted file mode 100644
index 936a22fef..000000000
--- a/src/Orchard/Environment/Extensions/Compilers/CSharpProjectFullTrustCompiler.cs
+++ /dev/null
@@ -1,54 +0,0 @@
-using System.CodeDom.Compiler;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Security;
-using Orchard.FileSystems.VirtualPath;
-
-namespace Orchard.Environment.Extensions.Compilers {
-    /// <summary>
-    /// Compile a C# extension into an assembly given a directory location
-    /// Note: currently not used...
-    /// </summary>
-    public class CSharpProjectFullTrustCompiler {
-        private readonly IVirtualPathProvider _virtualPathProvider;
-        private readonly IBuildManager _buildManager;
-
-        public CSharpProjectFullTrustCompiler(IVirtualPathProvider virtualPathProvider, IBuildManager buildManager) {
-            _virtualPathProvider = virtualPathProvider;
-            _buildManager = buildManager;
-        }
-
-        /// <summary>
-        /// Compile a csproj file given its virtual path. Use the CSharp CodeDomProvider
-        /// class, which is only available in full trust.
-        /// </summary>
-        public CompilerResults CompileProject(string virtualPath, string outputDirectory) {
-            var codeProvider = CodeDomProvider.CreateProvider("cs");
-            var directory = _virtualPathProvider.GetDirectoryName(virtualPath);
-
-            using (var stream = _virtualPathProvider.OpenFile(virtualPath)) {
-                var descriptor = new DefaultProjectFileParser().Parse(stream);
-
-                var references = GetReferencedAssembliesLocation();
-                var options = new CompilerParameters(references.ToArray());
-                options.GenerateExecutable = false;
-                options.OutputAssembly = Path.Combine(outputDirectory, descriptor.AssemblyName + ".dll");
-
-                var fileNames = descriptor.SourceFilenames
-                    .Select(f => _virtualPathProvider.Combine(directory, f))
-                    .Select(f => _virtualPathProvider.MapPath(f));
-
-                var results = codeProvider.CompileAssemblyFromFile(options, fileNames.ToArray());
-                return results;
-            }
-        }
-
-        private IEnumerable<string> GetReferencedAssembliesLocation() {
-            return _buildManager.GetReferencedAssemblies()
-                .Select(a => a.Location)
-                .Where(a => !string.IsNullOrEmpty(a))
-                .Distinct();
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/Orchard/Orchard.Framework.csproj b/src/Orchard/Orchard.Framework.csproj
index 06ecea4d6..69d504080 100644
--- a/src/Orchard/Orchard.Framework.csproj
+++ b/src/Orchard/Orchard.Framework.csproj
@@ -555,9 +555,7 @@
     <Compile Include="FileSystems\VirtualPath\IVirtualPathMonitor.cs" />
     <Compile Include="FileSystems\Dependencies\IDependenciesFolder.cs" />
     <Compile Include="Environment\Extensions\Compilers\IExtensionCompiler.cs" />
-    <Compile Include="Environment\Extensions\Compilers\CSharpExtensionDirectoryCompiler.cs" />
     <Compile Include="Environment\Extensions\Compilers\DefaultExtensionCompiler.cs" />
-    <Compile Include="Environment\Extensions\Compilers\CSharpProjectFullTrustCompiler.cs" />
     <Compile Include="Environment\Extensions\Compilers\DefaultProjectFileParser.cs" />
     <Compile Include="Environment\IAssemblyBuilder.cs" />
     <Compile Include="Environment\IBuildManager.cs" />