diff --git a/contrib/iconv/iconv.vcproj b/contrib/iconv/iconv.vcproj
index 723a648f7..8eaff466d 100644
--- a/contrib/iconv/iconv.vcproj
+++ b/contrib/iconv/iconv.vcproj
@@ -12,15 +12,17 @@
 		<Platform
 			Name="Win32"
 		/>
+		<Platform
+			Name="x64"
+		/>
 	</Platforms>
 	<ToolFiles>
 	</ToolFiles>
 	<Configurations>
 		<Configuration
 			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="4"
+			InheritedPropertySheets="..\..\aegisub\build\aegisub_vs2008\libraries_outdirs.vsprops"
 			CharacterSet="1"
 			>
 			<Tool
@@ -80,9 +82,8 @@
 		</Configuration>
 		<Configuration
 			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="4"
+			InheritedPropertySheets="..\..\aegisub\build\aegisub_vs2008\libraries_outdirs.vsprops"
 			CharacterSet="1"
 			WholeProgramOptimization="1"
 			>
@@ -141,6 +142,131 @@
 				Name="VCPostBuildEventTool"
 			/>
 		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			ConfigurationType="4"
+			InheritedPropertySheets="..\..\aegisub\build\aegisub_vs2008\libraries_outdirs.vsprops"
+			CharacterSet="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)/include&quot;"
+				PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			ConfigurationType="4"
+			InheritedPropertySheets="..\..\aegisub\build\aegisub_vs2008\libraries_outdirs.vsprops"
+			CharacterSet="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)/include&quot;"
+				PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
+				RuntimeLibrary="2"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
 	</Configurations>
 	<References>
 	</References>
@@ -653,6 +779,22 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath="libiconv\gentranslit.c"