diff --git a/EgtNumKernel.vcxproj b/EgtNumKernel.vcxproj
index 9bab5f8..6ae18fb 100644
--- a/EgtNumKernel.vcxproj
+++ b/EgtNumKernel.vcxproj
@@ -71,24 +71,28 @@
     <OutDir>$(SolutionDir)$(Configuration)$(PlatformArchitecture)\</OutDir>
     <IntDir>$(Configuration)$(PlatformArchitecture)\</IntDir>
     <TargetName>$(ProjectName)D$(PlatformArchitecture)</TargetName>
+    <IncludePath>C:\;$(IncludePath)</IncludePath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LinkIncremental>true</LinkIncremental>
     <OutDir>$(SolutionDir)$(Configuration)$(PlatformArchitecture)\</OutDir>
     <IntDir>$(Configuration)$(PlatformArchitecture)\</IntDir>
     <TargetName>$(ProjectName)D$(PlatformArchitecture)</TargetName>
+    <IncludePath>C:\;$(IncludePath)</IncludePath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <LinkIncremental>false</LinkIncremental>
     <OutDir>$(SolutionDir)$(Configuration)$(PlatformArchitecture)\</OutDir>
     <IntDir>$(Configuration)$(PlatformArchitecture)\</IntDir>
     <TargetName>$(ProjectName)R$(PlatformArchitecture)</TargetName>
+    <IncludePath>C:\;$(IncludePath)</IncludePath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <LinkIncremental>false</LinkIncremental>
     <OutDir>$(SolutionDir)$(Configuration)$(PlatformArchitecture)\</OutDir>
     <IntDir>$(Configuration)$(PlatformArchitecture)\</IntDir>
     <TargetName>$(ProjectName)R$(PlatformArchitecture)</TargetName>
+    <IncludePath>C:\;$(IncludePath)</IncludePath>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>