x64

In case it doesn't work...

KFTempArchiveExtractor.sln

@@ -1,20 +1,26 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 14
-VisualStudioVersion = 14.0.24720.0
+VisualStudioVersion = 14.0.25420.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KFTempArchiveExtractor", "KFTempArchiveExtractor\KFTempArchiveExtractor.csproj", "{3B418181-8BE4-4D18-876A-16DA9810F0C3}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
 		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{3B418181-8BE4-4D18-876A-16DA9810F0C3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{3B418181-8BE4-4D18-876A-16DA9810F0C3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3B418181-8BE4-4D18-876A-16DA9810F0C3}.Debug|x64.ActiveCfg = Debug|x64
+		{3B418181-8BE4-4D18-876A-16DA9810F0C3}.Debug|x64.Build.0 = Debug|x64
 		{3B418181-8BE4-4D18-876A-16DA9810F0C3}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{3B418181-8BE4-4D18-876A-16DA9810F0C3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3B418181-8BE4-4D18-876A-16DA9810F0C3}.Release|x64.ActiveCfg = Release|x64
+		{3B418181-8BE4-4D18-876A-16DA9810F0C3}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

KFTempArchiveExtractor/KFTempArchiveExtractor.csproj

@@ -32,6 +32,26 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x64\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <OutputPath>bin\x64\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />