diff --git a/build/Aegisub/Aegisub.targets b/build/Aegisub/Aegisub.targets
index 4614fe2ec..0dcbfb264 100644
--- a/build/Aegisub/Aegisub.targets
+++ b/build/Aegisub/Aegisub.targets
@@ -29,7 +29,7 @@
 
   Aegisub Project http://www.aegisub.org/
 -->
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
   <!-- Build credit text -->
   <ItemDefinitionGroup Condition="'$(AegisubBuildCredit)'==''">
diff --git a/build/Aegisub/Aegisub.vcxproj b/build/Aegisub/Aegisub.vcxproj
index df6e5bdca..76209cdae 100644
--- a/build/Aegisub/Aegisub.vcxproj
+++ b/build/Aegisub/Aegisub.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <!-- VC boilerplate -->
   <PropertyGroup Label="Globals">
     <ProjectGuid>{9DDDB9E5-E4A1-423D-A224-F6D4E5AAC06A}</ProjectGuid>
diff --git a/build/Aegisub/Aegisub.vcxproj.filters b/build/Aegisub/Aegisub.vcxproj.filters
index f8016a5f6..ca09046ad 100644
--- a/build/Aegisub/Aegisub.vcxproj.filters
+++ b/build/Aegisub/Aegisub.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Commands">
       <UniqueIdentifier>{b5d22cd4-b7ec-48ad-b78b-948b41e5dc15}</UniqueIdentifier>
diff --git a/build/Aegisub/standard-libraries.props b/build/Aegisub/standard-libraries.props
index b47f5d09c..5c9eda7ea 100644
--- a/build/Aegisub/standard-libraries.props
+++ b/build/Aegisub/standard-libraries.props
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ImportGroup Label="PropertySheets" />
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup>
diff --git a/build/DefaultConfiguration.props b/build/DefaultConfiguration.props
index 1f3c0a653..6dc7f1852 100644
--- a/build/DefaultConfiguration.props
+++ b/build/DefaultConfiguration.props
@@ -31,7 +31,7 @@
 
   $Id$
 -->
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
   <!-- Default settings for build-time options -->
   <PropertyGroup>
diff --git a/build/PortableInstaller/PortableInstaller.vcxproj b/build/PortableInstaller/PortableInstaller.vcxproj
index d9051a624..b7fbc400a 100644
--- a/build/PortableInstaller/PortableInstaller.vcxproj
+++ b/build/PortableInstaller/PortableInstaller.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{5B0E9978-E76F-4BBC-8194-228323F59B53}</ProjectGuid>
     <RootNamespace>PortableInstaller</RootNamespace>
diff --git a/build/PortableInstaller/PortableInstaller.vcxproj.filters b/build/PortableInstaller/PortableInstaller.vcxproj.filters
index 48080ffcf..cee9892a4 100644
--- a/build/PortableInstaller/PortableInstaller.vcxproj.filters
+++ b/build/PortableInstaller/PortableInstaller.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Automation">
       <UniqueIdentifier>{2c1914de-647f-44ab-a698-a289b10ec29c}</UniqueIdentifier>
diff --git a/build/aegisub.props b/build/aegisub.props
index 5712db2cc..d2a68d035 100644
--- a/build/aegisub.props
+++ b/build/aegisub.props
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <_PropertySheetDisplayName>Aegisub project</_PropertySheetDisplayName>
   </PropertyGroup>
diff --git a/build/boost/boost.vcxproj b/build/boost/boost.vcxproj
index 64598c176..fc30d43cb 100644
--- a/build/boost/boost.vcxproj
+++ b/build/boost/boost.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{A649D828-A399-4D81-ADEF-94CFDBA7847F}</ProjectGuid>
     <RootNamespace>boost</RootNamespace>
diff --git a/build/boost/boost.vcxproj.filters b/build/boost/boost.vcxproj.filters
index c8e796a47..366379efc 100644
--- a/build/boost/boost.vcxproj.filters
+++ b/build/boost/boost.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="regex">
       <UniqueIdentifier>{e091980d-4374-41b8-aa61-1b07695e1b17}</UniqueIdentifier>
diff --git a/build/csrihelper/csrihelper.vcxproj b/build/csrihelper/csrihelper.vcxproj
index 947e1839e..a20476d83 100644
--- a/build/csrihelper/csrihelper.vcxproj
+++ b/build/csrihelper/csrihelper.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <!-- VC boilerplate -->
   <PropertyGroup Label="Globals">
     <ProjectGuid>{C832EAF3-860D-4373-A02C-933626B47A5E}</ProjectGuid>
diff --git a/build/csrihelper/csrihelper.vcxproj.filters b/build/csrihelper/csrihelper.vcxproj.filters
index df9dc9b63..0dd2ca51c 100644
--- a/build/csrihelper/csrihelper.vcxproj.filters
+++ b/build/csrihelper/csrihelper.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/expat/expat.vcxproj.filters b/build/expat/expat.vcxproj.filters
index 4d6341d74..355924ee7 100644
--- a/build/expat/expat.vcxproj.filters
+++ b/build/expat/expat.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/ffmpeg/ffmpeg.vcxproj b/build/ffmpeg/ffmpeg.vcxproj
index 13c5f7cc2..9120ef8fe 100644
--- a/build/ffmpeg/ffmpeg.vcxproj
+++ b/build/ffmpeg/ffmpeg.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{F934AB7B-186B-4E96-B20C-A58C38C1B819}</ProjectGuid>
     <RootNamespace>ffmpeg</RootNamespace>
diff --git a/build/ffmpeg/ffmpeg.vcxproj.filters b/build/ffmpeg/ffmpeg.vcxproj.filters
index 050bf1b24..25c259cfc 100644
--- a/build/ffmpeg/ffmpeg.vcxproj.filters
+++ b/build/ffmpeg/ffmpeg.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <ClCompile Include="$(FfmpegSrcDir)\libavdevice\alldevices.c">
       <Filter>libavdevice</Filter>
diff --git a/build/ffms2/ffms2.vcxproj b/build/ffms2/ffms2.vcxproj
index 936eaa5c5..cc27cb8d5 100644
--- a/build/ffms2/ffms2.vcxproj
+++ b/build/ffms2/ffms2.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{AA137613-96A1-4388-8905-71345B4F8F87}</ProjectGuid>
     <RootNamespace>ffms2</RootNamespace>
diff --git a/build/ffms2/ffms2.vcxproj.filters b/build/ffms2/ffms2.vcxproj.filters
index c337e92b2..b5dd48f1c 100644
--- a/build/ffms2/ffms2.vcxproj.filters
+++ b/build/ffms2/ffms2.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Audio">
       <UniqueIdentifier>{ed366ac0-ef41-4c15-b40e-4db3c76b17db}</UniqueIdentifier>
diff --git a/build/fftw/fftw.vcxproj b/build/fftw/fftw.vcxproj
index 1f5597719..c38dd20cd 100644
--- a/build/fftw/fftw.vcxproj
+++ b/build/fftw/fftw.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{EA3DCC95-2423-4EA0-A508-7A427B4C0594}</ProjectGuid>
     <RootNamespace>fftw</RootNamespace>
diff --git a/build/fftw/fftw.vcxproj.filters b/build/fftw/fftw.vcxproj.filters
index fad71e996..94f248c47 100644
--- a/build/fftw/fftw.vcxproj.filters
+++ b/build/fftw/fftw.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/fontconfig/fontconfig.vcxproj b/build/fontconfig/fontconfig.vcxproj
index 3d3b2203f..1576ab579 100644
--- a/build/fontconfig/fontconfig.vcxproj
+++ b/build/fontconfig/fontconfig.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{AD56899E-961B-47B7-BD0F-14D0DA50D141}</ProjectGuid>
     <RootNamespace>fontconfig</RootNamespace>
diff --git a/build/fontconfig/fontconfig.vcxproj.filters b/build/fontconfig/fontconfig.vcxproj.filters
index f922a3ca8..3f5aecf85 100644
--- a/build/fontconfig/fontconfig.vcxproj.filters
+++ b/build/fontconfig/fontconfig.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{b4c15893-ec11-491d-9507-0ac184f9cc78}</UniqueIdentifier>
diff --git a/build/freetype2/freetype.vcxproj b/build/freetype2/freetype.vcxproj
index b90e2911e..57b7b4706 100644
--- a/build/freetype2/freetype.vcxproj
+++ b/build/freetype2/freetype.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}</ProjectGuid>
     <RootNamespace>freetype</RootNamespace>
diff --git a/build/freetype2/freetype.vcxproj.filters b/build/freetype2/freetype.vcxproj.filters
index 3c200ea5a..0d9678157 100644
--- a/build/freetype2/freetype.vcxproj.filters
+++ b/build/freetype2/freetype.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{b4c15893-ec11-491d-9507-0ac184f9cc78}</UniqueIdentifier>
diff --git a/build/fribidi/fribidi.vcxproj b/build/fribidi/fribidi.vcxproj
index ef3b521c2..a02a22fd3 100644
--- a/build/fribidi/fribidi.vcxproj
+++ b/build/fribidi/fribidi.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{FB8E8D19-A4D6-4181-943C-282075F49B41}</ProjectGuid>
     <RootNamespace>fribidi</RootNamespace>
diff --git a/build/fribidi/fribidi.vcxproj.filters b/build/fribidi/fribidi.vcxproj.filters
index 15cfe2eb3..c9768c8a5 100644
--- a/build/fribidi/fribidi.vcxproj.filters
+++ b/build/fribidi/fribidi.vcxproj.filters
@@ -1,2 +1,2 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" />
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" />
diff --git a/build/googletest/googletest.vcxproj b/build/googletest/googletest.vcxproj
index e68c22b30..ff7e14560 100644
--- a/build/googletest/googletest.vcxproj
+++ b/build/googletest/googletest.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{FBE51B37-8B12-41E8-B5E0-F00A06B4BCD2}</ProjectGuid>
     <RootNamespace>googletest</RootNamespace>
diff --git a/build/googletest/googletest.vcxproj.filters b/build/googletest/googletest.vcxproj.filters
index 54e13bb51..883838a26 100644
--- a/build/googletest/googletest.vcxproj.filters
+++ b/build/googletest/googletest.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/hunspell/hunspell.vcxproj b/build/hunspell/hunspell.vcxproj
index 67ce1c543..0de22503f 100644
--- a/build/hunspell/hunspell.vcxproj
+++ b/build/hunspell/hunspell.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{CC791693-6B28-40AC-879D-64A6C16468E3}</ProjectGuid>
     <RootNamespace>hunspell</RootNamespace>
diff --git a/build/hunspell/hunspell.vcxproj.filters b/build/hunspell/hunspell.vcxproj.filters
index 6ddb687b8..fdb464513 100644
--- a/build/hunspell/hunspell.vcxproj.filters
+++ b/build/hunspell/hunspell.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/icu/icu.vcxproj b/build/icu/icu.vcxproj
index f4e36160c..9e96e44d7 100644
--- a/build/icu/icu.vcxproj
+++ b/build/icu/icu.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{F934AB7B-186B-4E96-B20C-A58C38C1B818}</ProjectGuid>
     <RootNamespace>icu</RootNamespace>
diff --git a/build/install.targets b/build/install.targets
index 3d27e095c..077227549 100644
--- a/build/install.targets
+++ b/build/install.targets
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Target
     Name="InstallHeaders"
     BeforeTargets="ClCompile"
diff --git a/build/libaegisub/libaegisub.vcxproj b/build/libaegisub/libaegisub.vcxproj
index 2a1edd2c5..9ff9a4bcb 100644
--- a/build/libaegisub/libaegisub.vcxproj
+++ b/build/libaegisub/libaegisub.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{BB3FED86-DB7A-4DC7-964A-260FB86CDE61}</ProjectGuid>
     <RootNamespace>libaegisub</RootNamespace>
diff --git a/build/libaegisub/libaegisub.vcxproj.filters b/build/libaegisub/libaegisub.vcxproj.filters
index 4efd142ee..19f323d1f 100644
--- a/build/libaegisub/libaegisub.vcxproj.filters
+++ b/build/libaegisub/libaegisub.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/libass/libass.vcxproj b/build/libass/libass.vcxproj
index d715ee4ad..d1e5cb5a0 100644
--- a/build/libass/libass.vcxproj
+++ b/build/libass/libass.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{8804F253-DA67-4CC4-926B-0CD2AEE5778D}</ProjectGuid>
     <RootNamespace>libass</RootNamespace>
diff --git a/build/libass/libass.vcxproj.filters b/build/libass/libass.vcxproj.filters
index 6a1ade14f..63a764739 100644
--- a/build/libass/libass.vcxproj.filters
+++ b/build/libass/libass.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/libiconv/libiconv.vcxproj b/build/libiconv/libiconv.vcxproj
index b809a98f8..9412a0bfe 100644
--- a/build/libiconv/libiconv.vcxproj
+++ b/build/libiconv/libiconv.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{965054D2-44F2-4EB2-9879-051CC3D7EF08}</ProjectGuid>
     <RootNamespace>libiconv</RootNamespace>
diff --git a/build/libiconv/libiconv.vcxproj.filters b/build/libiconv/libiconv.vcxproj.filters
index 4f00ca28f..4e4a8972b 100644
--- a/build/libiconv/libiconv.vcxproj.filters
+++ b/build/libiconv/libiconv.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/libpng/libpng.vcxproj.filters b/build/libpng/libpng.vcxproj.filters
index 4d6341d74..355924ee7 100644
--- a/build/libpng/libpng.vcxproj.filters
+++ b/build/libpng/libpng.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/libresrc/libresrc.vcxproj b/build/libresrc/libresrc.vcxproj
index 8fb5040a3..5a5fafee1 100644
--- a/build/libresrc/libresrc.vcxproj
+++ b/build/libresrc/libresrc.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{BD00D65F-24DA-4784-8860-3B972EA125FC}</ProjectGuid>
     <RootNamespace>libresrc</RootNamespace>
diff --git a/build/libresrc/libresrc.vcxproj.filters b/build/libresrc/libresrc.vcxproj.filters
index 9fd9d56c7..9cedcca48 100644
--- a/build/libresrc/libresrc.vcxproj.filters
+++ b/build/libresrc/libresrc.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/luabins/luabins.vcxproj b/build/luabins/luabins.vcxproj
index 37f146493..ef162ac35 100644
--- a/build/luabins/luabins.vcxproj
+++ b/build/luabins/luabins.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{A7A30702-8162-4E1A-A010-EF51B590C121}</ProjectGuid>
     <RootNamespace>luabins</RootNamespace>
diff --git a/build/luabins/luabins.vcxproj.filters b/build/luabins/luabins.vcxproj.filters
index 0db010b4e..67677205b 100644
--- a/build/luabins/luabins.vcxproj.filters
+++ b/build/luabins/luabins.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Headers">
       <UniqueIdentifier>{0A33FF05-970D-49a7-B722-73E8EA350084}</UniqueIdentifier>
diff --git a/build/luajit-buildvm/luajit-buildvm.vcxproj b/build/luajit-buildvm/luajit-buildvm.vcxproj
index bb8f84b58..3132e2ab4 100644
--- a/build/luajit-buildvm/luajit-buildvm.vcxproj
+++ b/build/luajit-buildvm/luajit-buildvm.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{7CA6A4EB-A11B-4975-8F3A-F633111C6213}</ProjectGuid>
     <RootNamespace>luajitbuildvm</RootNamespace>
diff --git a/build/luajit-buildvm/luajit-buildvm.vcxproj.filters b/build/luajit-buildvm/luajit-buildvm.vcxproj.filters
index 2abe78db1..e9cb57b99 100644
--- a/build/luajit-buildvm/luajit-buildvm.vcxproj.filters
+++ b/build/luajit-buildvm/luajit-buildvm.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <ClCompile Include="$(SrcDir)src\host\buildvm.c" />
     <ClCompile Include="$(SrcDir)src\host\buildvm_asm.c" />
diff --git a/build/luajit-minilua/luajit-minilua.vcxproj b/build/luajit-minilua/luajit-minilua.vcxproj
index 0926c4c97..f27dbca75 100644
--- a/build/luajit-minilua/luajit-minilua.vcxproj
+++ b/build/luajit-minilua/luajit-minilua.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{FCAED410-90EF-4EF9-916C-4B86DC13A3CF}</ProjectGuid>
     <RootNamespace>luajitminilua</RootNamespace>
diff --git a/build/luajit-minilua/luajit-minilua.vcxproj.filters b/build/luajit-minilua/luajit-minilua.vcxproj.filters
index 266a06c02..5243cbd1d 100644
--- a/build/luajit-minilua/luajit-minilua.vcxproj.filters
+++ b/build/luajit-minilua/luajit-minilua.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <ClCompile Include="..\..\vendor\luajit\src\host\minilua.c" />
   </ItemGroup>
diff --git a/build/luajit/luajit.vcxproj b/build/luajit/luajit.vcxproj
index f3a280c01..69ea93dc7 100644
--- a/build/luajit/luajit.vcxproj
+++ b/build/luajit/luajit.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{5391A8B1-9C70-4DC4-92AD-D3E34C6B803F}</ProjectGuid>
     <RootNamespace>luajit</RootNamespace>
diff --git a/build/luajit/luajit.vcxproj.filters b/build/luajit/luajit.vcxproj.filters
index a79ef6083..ce731e4c7 100644
--- a/build/luajit/luajit.vcxproj.filters
+++ b/build/luajit/luajit.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Internal headers">
       <UniqueIdentifier>{dfbe0704-0805-42a9-b221-0eb02d38e473}</UniqueIdentifier>
diff --git a/build/paths.props b/build/paths.props
index 03e2461c8..cc6e5d677 100644
--- a/build/paths.props
+++ b/build/paths.props
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 	<PropertyGroup>
 		<_PropertySheetDisplayName>Path definitions</_PropertySheetDisplayName>
 	</PropertyGroup>
diff --git a/build/respack.targets b/build/respack.targets
index ad68544cb..5d8cf0194 100644
--- a/build/respack.targets
+++ b/build/respack.targets
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <MiniLuaCommand>$(AegisubBinaryDir)luajit-minilua$(AegisubPlatformSuffix)</MiniLuaCommand>
     <ResPackCommand>$(AegisubSourceBase)tools\respack.lua</ResPackCommand>
diff --git a/build/scintilla/scintilla.vcxproj.filters b/build/scintilla/scintilla.vcxproj.filters
index 4d6341d74..355924ee7 100644
--- a/build/scintilla/scintilla.vcxproj.filters
+++ b/build/scintilla/scintilla.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/standard-outdirs.props b/build/standard-outdirs.props
index 65f089576..997fcbace 100644
--- a/build/standard-outdirs.props
+++ b/build/standard-outdirs.props
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 	<PropertyGroup>
 		<_PropertySheetDisplayName>Output directories</_PropertySheetDisplayName>
 	</PropertyGroup>
diff --git a/build/standard-settings.props b/build/standard-settings.props
index 0d364afd3..bdd8e7ac6 100644
--- a/build/standard-settings.props
+++ b/build/standard-settings.props
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 	<PropertyGroup>
 		<_PropertySheetDisplayName>Compiler settings</_PropertySheetDisplayName>
 	</PropertyGroup>
diff --git a/build/tasks.props b/build/tasks.props
index 6f3eed31f..ab77c6a0d 100644
--- a/build/tasks.props
+++ b/build/tasks.props
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <_PropertySheetDisplayName>Custom Tasks</_PropertySheetDisplayName>
   </PropertyGroup>
diff --git a/build/tests/tests.vcxproj b/build/tests/tests.vcxproj
index 7a60299d0..aa1d92a71 100644
--- a/build/tests/tests.vcxproj
+++ b/build/tests/tests.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{49766286-2B5D-4177-A860-BD7CE1846EEF}</ProjectGuid>
     <RootNamespace>tests</RootNamespace>
diff --git a/build/tests/tests.vcxproj.filters b/build/tests/tests.vcxproj.filters
index ebc82f7d6..dceeba91b 100644
--- a/build/tests/tests.vcxproj.filters
+++ b/build/tests/tests.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Support">
       <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
diff --git a/build/universalchardet/universalchardet.vcxproj b/build/universalchardet/universalchardet.vcxproj
index 697631534..c37ad5cd6 100644
--- a/build/universalchardet/universalchardet.vcxproj
+++ b/build/universalchardet/universalchardet.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{7B56955D-5162-4698-AA5B-47484EDC8783}</ProjectGuid>
     <RootNamespace>universalchardet</RootNamespace>
diff --git a/build/universalchardet/universalchardet.vcxproj.filters b/build/universalchardet/universalchardet.vcxproj.filters
index 77a85d664..0c3a79a3f 100644
--- a/build/universalchardet/universalchardet.vcxproj.filters
+++ b/build/universalchardet/universalchardet.vcxproj.filters
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
diff --git a/build/userconfig/ft2.props.sample b/build/userconfig/ft2.props.sample
index cf646ad9b..926813596 100644
--- a/build/userconfig/ft2.props.sample
+++ b/build/userconfig/ft2.props.sample
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
 	<!--
 		Sample build customisation file for Aegisub.
diff --git a/build/userconfig/paths.props.sample b/build/userconfig/paths.props.sample
index 7d8ea2880..8b57248e3 100644
--- a/build/userconfig/paths.props.sample
+++ b/build/userconfig/paths.props.sample
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
 	<!--
 		Sample build customisation file for Aegisub.
diff --git a/build/userconfig/wx.props.sample b/build/userconfig/wx.props.sample
index 1a8d76392..0fdeba05d 100644
--- a/build/userconfig/wx.props.sample
+++ b/build/userconfig/wx.props.sample
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
 	<!--
 		Sample build customisation file for Aegisub.
diff --git a/build/version.sh b/build/version.sh
index 02708f4c1..8cea0a3f3 100755
--- a/build/version.sh
+++ b/build/version.sh
@@ -70,7 +70,7 @@ export VERSION_SOURCE="from git"
 
 cat << EOF > build/git_version.xml
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <GitVersionNumber>${git_revision}</GitVersionNumber>
     <GitVersionString>${git_version_str}</GitVersionString>
diff --git a/build/wx/wxWidgets.vcxproj b/build/wx/wxWidgets.vcxproj
index 78ce22939..e0903bd8a 100644
--- a/build/wx/wxWidgets.vcxproj
+++ b/build/wx/wxWidgets.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{0518D6C0-7BF6-4FD1-91FB-191BD10DB2AC}</ProjectGuid>
     <RootNamespace>wxWidgets</RootNamespace>
diff --git a/build/zlib/zlib.vcxproj b/build/zlib/zlib.vcxproj
index 6cdbb898f..06e60a16a 100644
--- a/build/zlib/zlib.vcxproj
+++ b/build/zlib/zlib.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{10F22A5A-DD9E-44A1-BA2E-2A9A7C78B0EE}</ProjectGuid>
     <RootNamespace>zlib</RootNamespace>