diff --git a/src/ir_decoder/ir_decoder.vcxproj b/src/ir_decoder/ir_decoder.vcxproj
index c80b63a..35f0fab 100644
--- a/src/ir_decoder/ir_decoder.vcxproj
+++ b/src/ir_decoder/ir_decoder.vcxproj
@@ -159,8 +159,6 @@
     <ClInclude Include="include\ir_defs.h" />
     <ClInclude Include="include\ir_tv_control.h" />
     <ClInclude Include="include\ir_utils.h" />
-    <ClInclude Include="stdafx.h" />
-    <ClInclude Include="targetver.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="src\ir_ac_apply.c" />
@@ -173,12 +171,6 @@
     <ClCompile Include="src\ir_decode.c" />
     <ClCompile Include="src\ir_tv_control.c" />
     <ClCompile Include="src\ir_utils.c" />
-    <ClCompile Include="stdafx.c">
-      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
-      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
-      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>
-      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="ir_decode.def" />
diff --git a/src/ir_decoder/ir_decoder.vcxproj.filters b/src/ir_decoder/ir_decoder.vcxproj.filters
index 3c9a3a5..19555d5 100644
--- a/src/ir_decoder/ir_decoder.vcxproj.filters
+++ b/src/ir_decoder/ir_decoder.vcxproj.filters
@@ -15,12 +15,6 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="stdafx.h">
-      <Filter>头文件</Filter>
-    </ClInclude>
-    <ClInclude Include="targetver.h">
-      <Filter>头文件</Filter>
-    </ClInclude>
     <ClInclude Include="include\ir_ac_apply.h">
       <Filter>头文件</Filter>
     </ClInclude>
@@ -86,9 +80,6 @@
     <ClCompile Include="src\ir_utils.c">
       <Filter>源文件</Filter>
     </ClCompile>
-    <ClCompile Include="stdafx.c">
-      <Filter>源文件</Filter>
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="ir_decode.def">
diff --git a/src/ir_decoder/stdafx.c b/src/ir_decoder/stdafx.c
deleted file mode 100644
index d9de069..0000000
Binary files a/src/ir_decoder/stdafx.c and /dev/null differ
diff --git a/src/ir_decoder/stdafx.h b/src/ir_decoder/stdafx.h
deleted file mode 100644
index ac16b94..0000000
Binary files a/src/ir_decoder/stdafx.h and /dev/null differ
diff --git a/src/ir_decoder/targetver.h b/src/ir_decoder/targetver.h
deleted file mode 100644
index e2da66c..0000000
Binary files a/src/ir_decoder/targetver.h and /dev/null differ