diff --git a/win32/System/System.vcproj b/win32/System/System.vcproj
index 457340f1513..c450e93c219 100644
--- a/win32/System/System.vcproj
+++ b/win32/System/System.vcproj
@@ -89,73 +89,6 @@
 				Name="VCPostBuildEventTool"
 			/>
 		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)\bin\$(PlatformName)\$(ConfigurationName)"
-			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
-			ConfigurationType="4"
-			InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
-			CharacterSet="2"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\include;.."
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;WIN32;NDEBUG;_LIB;__STDC_LIMIT_MACROS"
-				StringPooling="true"
-				RuntimeLibrary="2"
-				ForceConformanceInForLoopScope="true"
-				RuntimeTypeInfo="true"
-				UsePrecompiledHeader="0"
-				ProgramDataBaseFileName="$(OutDir)\$(ProjectName).pdb"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="false"
-				DebugInformationFormat="3"
-				DisableSpecificWarnings="4355,4146,4800"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLibrarianTool"
-				OutputFile="$(OutDir)/System.lib"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
 		<Configuration
 			Name="Debug|x64"
 			OutputDirectory="$(SolutionDir)\bin\$(PlatformName)\$(ConfigurationName)"
@@ -228,6 +161,73 @@
 				Name="VCPostBuildEventTool"
 			/>
 		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(SolutionDir)\bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="4"
+			InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				AdditionalIncludeDirectories="..\..\include;.."
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;WIN32;NDEBUG;_LIB;__STDC_LIMIT_MACROS"
+				StringPooling="true"
+				RuntimeLibrary="2"
+				ForceConformanceInForLoopScope="true"
+				RuntimeTypeInfo="true"
+				UsePrecompiledHeader="0"
+				ProgramDataBaseFileName="$(OutDir)\$(ProjectName).pdb"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="false"
+				DebugInformationFormat="3"
+				DisableSpecificWarnings="4355,4146,4800"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				OutputFile="$(OutDir)/System.lib"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
 		<Configuration
 			Name="Release|x64"
 			OutputDirectory="$(SolutionDir)\bin\$(PlatformName)\$(ConfigurationName)"
@@ -321,10 +321,6 @@
 				RelativePath="..\..\lib\System\IncludeFile.cpp"
 				>
 			</File>
-			<File
-				RelativePath="..\..\lib\System\MappedFile.cpp"
-				>
-			</File>
 			<File
 				RelativePath="..\..\lib\System\Memory.cpp"
 				>
diff --git a/win32/x86/x86.vcproj b/win32/x86/x86.vcproj
index 1d894f93500..b47d5594334 100644
--- a/win32/x86/x86.vcproj
+++ b/win32/x86/x86.vcproj
@@ -369,6 +369,28 @@
 				RelativePath="..\..\lib\Target\X86\X86COFF.h"
 				>
 			</File>
+			<File
+				RelativePath="..\..\lib\Target\X86\X86CompilationCallback_Win64.asm"
+				>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCustomBuildTool"
+						CommandLine="ml64.exe /c /nologo /Fo &quot;$(IntDir)X86CompilationCallback_Win64.obj&quot; /Zi $(InputPath)"
+						Outputs="&quot;$(IntDir)X86CompilationCallback_Win64.obj&quot;"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCustomBuildTool"
+						CommandLine="ml64.exe /c /nologo /Fo &quot;$(IntDir)X86CompilationCallback_Win64.obj&quot; /Zi $(InputPath)"
+						Outputs="&quot;$(IntDir)X86CompilationCallback_Win64.obj&quot;"
+					/>
+				</FileConfiguration>
+			</File>
 			<File
 				RelativePath="..\..\lib\Target\X86\X86ELFWriterInfo.cpp"
 				>