diff --git a/masm64.rules b/masm64.rules
new file mode 100644
index 0000000000..8444fa3f67
--- /dev/null
+++ b/masm64.rules
@@ -0,0 +1,266 @@
+<?xml version="1.0" encoding="utf-8"?>
+<VisualStudioToolFile
+	Name="Microsoft Macro Assembler 64"
+	Version="8.00"
+	>
+	<Rules>
+		<CustomBuildRule
+			Name="MASM AMD64"
+			DisplayName="Microsoft Macro Assembler for AMD64"
+			CommandLine="ml64.exe /c [AllOptions] [AdditionalOptions] /Ta[inputs]"
+			Outputs="[$ObjectFileName]"
+			FileExtensions="*.asm"
+			ExecutionDescription="Assembling..."
+			>
+			<Properties>
+				<BooleanProperty
+					Name="NoLogo"
+					DisplayName="Suppress Startup Banner"
+					Description="Suppress the display of the startup banner and information messages.     (/nologo)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/nologo"
+					DefaultValue="true"
+				/>
+				<StringProperty
+					Name="ObjectFileName"
+					DisplayName="Object File Name"
+					PropertyPageName="Object File"
+					Description="Specifies the name of the output object file.     (/Fo:[file])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Fo&quot;[value]&quot;"
+					DefaultValue="$(IntDir)\$(InputName).obj"
+				/>
+				<BooleanProperty
+					Name="PreserveIdentifierCase"
+					DisplayName="Preserve Identifier Case"
+					PropertyPageName="Identifiers"
+					Description="Preserves case of all user identifiers.     (/Cp)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Cp"
+				/>
+				<BooleanProperty
+					Name="PreservePublicAndExternSymbolCase"
+					DisplayName="Preserve Public and Extern Symbol Case"
+					PropertyPageName="Identifiers"
+					Description="Preserves case in public and extern symbols.     (/Cx)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Cx"
+				/>
+				<StringProperty
+					Name="PreprocessorDefinitions"
+					DisplayName="Preprocessor Definitions"
+					Description="Defines a text macro with the given name.     (/D[symbol])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/D&quot;[value]&quot;"
+					Delimited="true"
+					Inheritable="true"
+				/>
+				<BooleanProperty
+					Name="GeneratePreprocessedSourceListing"
+					DisplayName="Generate Preprocessed Source Listing"
+					PropertyPageName="Listing File"
+					Description="Generates a preprocessed source listing to the Output Window.     (/EP)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/EP"
+				/>
+				<StringProperty
+					Name="AssembledCodeListingFile"
+					DisplayName="Assembled Code Listing File"
+					PropertyPageName="Listing File"
+					Description="Generates an assembled code listing file.     (/Fl[file])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Fl&quot;[value]&quot;"
+				/>
+				<StringProperty
+					Name="SourceBrowserFile"
+					DisplayName="Source Browser File"
+					PropertyPageName="Source Browser File"
+					Description="Generates a source browser .sbr file.     (/Fr[file])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Fr&quot;[value]&quot;"
+				/>
+				<StringProperty
+					Name="ExtendedSourceBrowserFile"
+					DisplayName="Extended Source Browser File"
+					PropertyPageName="Source Browser File"
+					Description="Generates an extended form of a source browser .sbr file.     (/FR[file])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/FR&quot;[value]&quot;"
+				/>
+				<StringProperty
+					Name="IncludePaths"
+					DisplayName="Include Paths"
+					Description="Sets path for include file. A maximum of 10 /I options is allowed.     (/I [path])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/I &quot;[value]&quot;"
+					Delimited="true"
+					Inheritable="true"
+				/>
+				<BooleanProperty
+					Name="ListAllAvailableInformation"
+					DisplayName="List All Available Information"
+					PropertyPageName="Listing File"
+					Description="Turns on listing of all available information.     (/Sa)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Sa"
+				/>
+				<BooleanProperty
+					Name="AddInstructionTimings"
+					DisplayName="Add Instruction Timings"
+					PropertyPageName="Listing File"
+					Description="Adds instruction timings to listing file.     (/Sc)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Sc"
+				/>
+				<BooleanProperty
+					Name="AddFirstPassListing"
+					DisplayName="Add First Pass Listing"
+					PropertyPageName="Listing File"
+					Description="Adds first-pass listing to listing file.     (/Sf)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Sf"
+				/>
+				<IntegerProperty
+					Name="SourceListingLineWidth"
+					DisplayName="Source Listing Line Width"
+					PropertyPageName="Listing File"
+					Description="Sets the line width of source listing in characters per line. Range is 60 to 255 or 0. Default is 0. Same as PAGE width.     (/Sl [width])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Sl [value]"
+				/>
+				<BooleanProperty
+					Name="DisableSymbolTable"
+					DisplayName="Disable Symbol Table"
+					PropertyPageName="Listing File"
+					Description="Turns off symbol table when producing a listing.     (/Sn)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Sn"
+				/>
+				<IntegerProperty
+					Name="SourceListingPageLength"
+					DisplayName="Source Listing Page Length"
+					PropertyPageName="Listing File"
+					Description="Sets the page length of source listing in lines per page. Range is 10 to 255 or 0. Default is 0. Same as PAGE length.     (/Sp [length])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Sp [value]"
+				/>
+				<StringProperty
+					Name="SourceListingSubTitle"
+					DisplayName="Source Listing Subtitle"
+					PropertyPageName="Listing File"
+					Description="Specifies subtitle text for source listing. Same as SUBTITLE text.     (/Ss [subtitle])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Ss [value]"
+				/>
+				<StringProperty
+					Name="SourceListingTitle"
+					DisplayName="Source Listing Title"
+					PropertyPageName="Listing File"
+					Description="Specifies title for source listing. Same as TITLE text.     (/St [title])"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/St [value]"
+				/>
+				<BooleanProperty
+					Name="EnableFalseConditionalsInListing"
+					DisplayName="Enable False Conditionals In Listing"
+					PropertyPageName="Listing File"
+					Description="Turns on false conditionals in listing.     (/Sx)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Sx"
+				/>
+				<EnumProperty
+					Name="WarningLevel"
+					DisplayName="Warning Level"
+					Description="Sets the warning level, where level = 0, 1, 2, or 3.    (/W0, /W1, /W2, /W3)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					>
+					<Values>
+						<EnumValue
+							Value="0"
+							Switch="/W0"
+							DisplayName="Warning Level 0 (/W0)"
+						/>
+						<EnumValue
+							Value="1"
+							Switch="/W1"
+							DisplayName="Warning Level 1 (/W1)"
+						/>
+						<EnumValue
+							Value="2"
+							Switch="/W2"
+							DisplayName="Warning Level 2 (/W2)"
+						/>
+						<EnumValue
+							Value="3"
+							Switch="/W3"
+							DisplayName="Warning Level 3 (/W3)"
+						/>
+					</Values>
+				</EnumProperty>
+				<BooleanProperty
+					Name="TreatWarningsAsErrors"
+					DisplayName="Treat Warnings As Errors"
+					Description="Returns an error code if warnings are generated.     (/WX)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/WX"
+				/>
+				<BooleanProperty
+					Name="GenerateLineInformation"
+					DisplayName="Generate Line Information"
+					PropertyPageName="Object File"
+					Description="Generates line-number information in object file.     (/Zd)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Zd"
+				/>
+				<BooleanProperty
+					Name="MakeAllSymbolsPublic"
+					DisplayName="Make All Symbols Public"
+					PropertyPageName="Object File"
+					Description="Makes all symbols public.     (/Zf)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Zf"
+				/>
+				<BooleanProperty
+					Name="GenerateCodeViewInformation"
+					DisplayName="Generate CodeView Information"
+					PropertyPageName="Object File"
+					Description="Generates CodeView information in object file.     (/Zi)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Zi"
+				/>
+				<EnumProperty
+					Name="PackAlignmentBoundary"
+					DisplayName="Pack Alignment Boundary"
+					PropertyPageName="Advanced"
+					Description="Packs structures on the specified byte boundary. The alignment can be 1, 2, or 4.     (/Zp1, /Zp2, /Zp4)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					>
+					<Values>
+						<EnumValue
+							Value="0"
+							Switch="/Zp1"
+							DisplayName="One Byte Boundary (/Zp1)"
+						/>
+						<EnumValue
+							Value="1"
+							Switch="/Zp2"
+							DisplayName="Two Byte Boundary (/Zp2)"
+						/>
+						<EnumValue
+							Value="2"
+							Switch="/Zp4"
+							DisplayName="Four Byte Boundary (/Zp4)"
+						/>
+					</Values>
+				</EnumProperty>
+				<BooleanProperty
+					Name="PerformSyntaxCheckOnly"
+					DisplayName="Perform Syntax Check Only"
+					Description="Performs a syntax check only.     (/Zs)"
+					HelpURL="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmasm/html/vclrfml.asp"
+					Switch="/Zs"
+				/>
+			</Properties>
+		</CustomBuildRule>
+	</Rules>
+</VisualStudioToolFile>
diff --git a/openttd_vs80.sln b/openttd_vs80.sln
index bb2c6225c1..130cbfa32c 100644
--- a/openttd_vs80.sln
+++ b/openttd_vs80.sln
@@ -18,25 +18,43 @@ EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
 		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{A133A442-BD0A-4ADE-B117-AD7545E4BDD1}.Debug|Win32.ActiveCfg = Debug|Win32
 		{A133A442-BD0A-4ADE-B117-AD7545E4BDD1}.Debug|Win32.Build.0 = Debug|Win32
+		{A133A442-BD0A-4ADE-B117-AD7545E4BDD1}.Debug|x64.ActiveCfg = Debug|Win32
+		{A133A442-BD0A-4ADE-B117-AD7545E4BDD1}.Debug|x64.Build.0 = Debug|Win32
 		{A133A442-BD0A-4ADE-B117-AD7545E4BDD1}.Release|Win32.ActiveCfg = Debug|Win32
 		{A133A442-BD0A-4ADE-B117-AD7545E4BDD1}.Release|Win32.Build.0 = Debug|Win32
+		{A133A442-BD0A-4ADE-B117-AD7545E4BDD1}.Release|x64.ActiveCfg = Debug|Win32
+		{A133A442-BD0A-4ADE-B117-AD7545E4BDD1}.Release|x64.Build.0 = Debug|Win32
 		{668328A0-B40E-4CDB-BD72-D0064424414A}.Debug|Win32.ActiveCfg = Debug|Win32
 		{668328A0-B40E-4CDB-BD72-D0064424414A}.Debug|Win32.Build.0 = Debug|Win32
+		{668328A0-B40E-4CDB-BD72-D0064424414A}.Debug|x64.ActiveCfg = Debug|x64
+		{668328A0-B40E-4CDB-BD72-D0064424414A}.Debug|x64.Build.0 = Debug|x64
 		{668328A0-B40E-4CDB-BD72-D0064424414A}.Release|Win32.ActiveCfg = Release|Win32
 		{668328A0-B40E-4CDB-BD72-D0064424414A}.Release|Win32.Build.0 = Release|Win32
+		{668328A0-B40E-4CDB-BD72-D0064424414A}.Release|x64.ActiveCfg = Release|x64
+		{668328A0-B40E-4CDB-BD72-D0064424414A}.Release|x64.Build.0 = Release|x64
 		{0F066B23-18DF-4284-8265-F4A5E7E3B966}.Debug|Win32.ActiveCfg = Debug|Win32
 		{0F066B23-18DF-4284-8265-F4A5E7E3B966}.Debug|Win32.Build.0 = Debug|Win32
+		{0F066B23-18DF-4284-8265-F4A5E7E3B966}.Debug|x64.ActiveCfg = Debug|Win32
+		{0F066B23-18DF-4284-8265-F4A5E7E3B966}.Debug|x64.Build.0 = Debug|Win32
 		{0F066B23-18DF-4284-8265-F4A5E7E3B966}.Release|Win32.ActiveCfg = Debug|Win32
 		{0F066B23-18DF-4284-8265-F4A5E7E3B966}.Release|Win32.Build.0 = Debug|Win32
+		{0F066B23-18DF-4284-8265-F4A5E7E3B966}.Release|x64.ActiveCfg = Debug|Win32
+		{0F066B23-18DF-4284-8265-F4A5E7E3B966}.Release|x64.Build.0 = Debug|Win32
 		{4AECBDC3-D57E-4AFB-90BD-DDF10707588C}.Debug|Win32.ActiveCfg = Debug|Win32
 		{4AECBDC3-D57E-4AFB-90BD-DDF10707588C}.Debug|Win32.Build.0 = Debug|Win32
+		{4AECBDC3-D57E-4AFB-90BD-DDF10707588C}.Debug|x64.ActiveCfg = Debug|x64
+		{4AECBDC3-D57E-4AFB-90BD-DDF10707588C}.Debug|x64.Build.0 = Debug|x64
 		{4AECBDC3-D57E-4AFB-90BD-DDF10707588C}.Release|Win32.ActiveCfg = Release|Win32
 		{4AECBDC3-D57E-4AFB-90BD-DDF10707588C}.Release|Win32.Build.0 = Release|Win32
+		{4AECBDC3-D57E-4AFB-90BD-DDF10707588C}.Release|x64.ActiveCfg = Release|x64
+		{4AECBDC3-D57E-4AFB-90BD-DDF10707588C}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/openttd_vs80.vcproj b/openttd_vs80.vcproj
index f7740f6237..9615cfe469 100644
--- a/openttd_vs80.vcproj
+++ b/openttd_vs80.vcproj
@@ -10,8 +10,14 @@
 		<Platform
 			Name="Win32"
 		/>
+		<Platform
+			Name="x64"
+		/>
 	</Platforms>
 	<ToolFiles>
+		<DefaultToolFile
+			FileName="masm64.rules"
+		/>
 	</ToolFiles>
 	<Configurations>
 		<Configuration
@@ -31,6 +37,9 @@
 			<Tool
 				Name="VCCustomBuildTool"
 			/>
+			<Tool
+				Name="MASM AMD64"
+			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
 			/>
@@ -122,6 +131,118 @@
 				Name="VCPostBuildEventTool"
 			/>
 		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="MASM AMD64"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+				TypeLibraryName=".\Release/openttd.tlb"
+				HeaderFileName=""
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="3"
+				InlineFunctionExpansion="2"
+				EnableIntrinsicFunctions="true"
+				FavorSizeOrSpeed="2"
+				OmitFramePointers="true"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;WIN32_EXCEPTION_TRACKER;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_PNG;ENABLE_NETWORK"
+				StringPooling="true"
+				ExceptionHandling="1"
+				RuntimeLibrary="0"
+				StructMemberAlignment="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				DefaultCharIsUnsigned="true"
+				UsePrecompiledHeader="0"
+				PrecompiledHeaderThrough=""
+				PrecompiledHeaderFile=""
+				AssemblerOutput="2"
+				AssemblerListingLocation=".\$(ConfigurationName)\"
+				ObjectFile=".\$(ConfigurationName)\"
+				ProgramDataBaseFileName=".\$(ConfigurationName)\"
+				BrowseInformation="1"
+				WarningLevel="3"
+				WarnAsError="false"
+				SuppressStartupBanner="true"
+				DebugInformationFormat="3"
+				CallingConvention="1"
+				CompileAs="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="NDEBUG"
+				Culture="1053"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib dxguid.lib"
+				OutputFile=".\$(PlatformName)\$(ConfigurationName)\openttd.exe"
+				LinkIncremental="1"
+				SuppressStartupBanner="true"
+				IgnoreDefaultLibraryNames=""
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile=".\$(ConfigurationName)\openttd.pdb"
+				SubSystem="2"
+				OptimizeReferences="2"
+				OptimizeForWindows98="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
 		<Configuration
 			Name="Debug|Win32"
 			OutputDirectory=".\$(ConfigurationName)\"
@@ -138,6 +259,9 @@
 			<Tool
 				Name="VCCustomBuildTool"
 			/>
+			<Tool
+				Name="MASM AMD64"
+			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
 			/>
@@ -217,6 +341,105 @@
 				Name="VCPostBuildEventTool"
 			/>
 		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="MASM AMD64"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+				TypeLibraryName=".\Debug/openttd.tlb"
+				HeaderFileName=""
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_PNG;ENABLE_NETWORK"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="1"
+				UsePrecompiledHeader="0"
+				PrecompiledHeaderThrough=""
+				PrecompiledHeaderFile=""
+				AssemblerListingLocation=".\$(ConfigurationName)\"
+				ObjectFile=".\$(ConfigurationName)\"
+				ProgramDataBaseFileName=".\$(ConfigurationName)\"
+				WarningLevel="3"
+				WarnAsError="false"
+				SuppressStartupBanner="true"
+				Detect64BitPortabilityProblems="false"
+				DebugInformationFormat="3"
+				CallingConvention="0"
+				CompileAs="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="_DEBUG"
+				Culture="1053"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib dxguid.lib"
+				OutputFile=".\$(PlatformName)\$(ConfigurationName)\openttd.exe"
+				LinkIncremental="0"
+				SuppressStartupBanner="true"
+				IgnoreDefaultLibraryNames="LIBCMT.lib"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile=".\$(ConfigurationName)\openttd.pdb"
+				SubSystem="2"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
 	</Configurations>
 	<References>
 	</References>
@@ -280,6 +503,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 				<FileConfiguration
 					Name="Debug|Win32"
 					>
@@ -288,6 +519,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\driver.c"
@@ -549,6 +788,44 @@
 				RelativePath=".\video\win32_v.c"
 				>
 			</File>
+			<File
+				RelativePath=".\win64.asm"
+				>
+				<FileConfiguration
+					Name="Release|Win32"
+					ExcludedFromBuild="true"
+					>
+					<Tool
+						Name="VCCustomBuildTool"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="MASM AMD64"
+						PreserveIdentifierCase="true"
+						PreservePublicAndExternSymbolCase="true"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|Win32"
+					ExcludedFromBuild="true"
+					>
+					<Tool
+						Name="VCCustomBuildTool"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="MASM AMD64"
+						PreserveIdentifierCase="true"
+						PreservePublicAndExternSymbolCase="true"
+					/>
+				</FileConfiguration>
+			</File>
 			<File
 				RelativePath=".\window.c"
 				>
@@ -1329,6 +1606,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 				<FileConfiguration
 					Name="Debug|Win32"
 					>
@@ -1337,6 +1622,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\yapf\follow_track.hpp"
@@ -1377,6 +1670,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 				<FileConfiguration
 					Name="Debug|Win32"
 					>
@@ -1385,6 +1686,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\yapf\yapf_common.hpp"
@@ -1429,6 +1738,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 				<FileConfiguration
 					Name="Debug|Win32"
 					>
@@ -1437,6 +1754,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\yapf\yapf_road.cpp"
@@ -1449,6 +1774,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 				<FileConfiguration
 					Name="Debug|Win32"
 					>
@@ -1457,6 +1790,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\yapf\yapf_settings.h"
@@ -1473,6 +1814,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 				<FileConfiguration
 					Name="Debug|Win32"
 					>
@@ -1481,6 +1830,14 @@
 						CompileAs="2"
 					/>
 				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
 			</File>
 		</Filter>
 		<File
diff --git a/yapf/unittest/unittest_vs80.vcproj b/yapf/unittest/unittest_vs80.vcproj
index 467b5ede6d..cbf1815ed3 100644
--- a/yapf/unittest/unittest_vs80.vcproj
+++ b/yapf/unittest/unittest_vs80.vcproj
@@ -11,6 +11,9 @@
 		<Platform
 			Name="Win32"
 		/>
+		<Platform
+			Name="x64"
+		/>
 	</Platforms>
 	<ToolFiles>
 	</ToolFiles>
@@ -169,6 +172,162 @@
 				Name="VCPostBuildEventTool"
 			/>
 		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="1"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)/unittest.exe"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/unittest.pdb"
+				SubSystem="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
+				RuntimeLibrary="0"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)/unittest.exe"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
 	</Configurations>
 	<References>
 	</References>