diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..83fd45e3
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,6 @@
+*.sln text eol=crlf
+*.vcxproj text eol=crlf
+*.vcxproj.filters text eol=crlf
+*.vcxproj.user text eol=crlf
+*.bat text eol=crlf
+Makefile text eolf=lf
diff --git a/build/vc2017/nana.vcxproj b/build/vc2017/nana.vcxproj
index 85ad8a03..7ae3d890 100644
--- a/build/vc2017/nana.vcxproj
+++ b/build/vc2017/nana.vcxproj
@@ -23,7 +23,6 @@
     <ProjectGuid>{42D0520F-EFA5-4831-84FE-2B9085301C5D}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>nana</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
@@ -102,6 +101,7 @@
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -115,6 +115,7 @@
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -130,6 +131,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -147,6 +149,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>