diff --git a/libfabric.vcxproj b/libfabric.vcxproj
index 43a05e7..ceb596f 100644
--- a/libfabric.vcxproj
+++ b/libfabric.vcxproj
@@ -125,7 +125,7 @@
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_WINSOCKAPI_=;_CRT_SECURE_NO_WARNINGS;_WINSOCK_DEPRECATED_NO_WARNINGS;_WINDOWS;_USRDLL;LIBFABRIC_EXPORTS;HAVE_CONFIG_H;ENABLE_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(AdditionalIncludeDirectories);$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>
       <DisableSpecificWarnings>4127;4200;4204;4221;4115;4201;4100</DisableSpecificWarnings>
       <C99Support>true</C99Support>
@@ -148,7 +148,7 @@
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_WINSOCKAPI_=;_CRT_SECURE_NO_WARNINGS;_WINSOCK_DEPRECATED_NO_WARNINGS;_WINDOWS;_USRDLL;LIBFABRIC_EXPORTS;HAVE_CONFIG_H;ENABLE_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include;</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(AdditionalIncludeDirectories);$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include;</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>
       <DisableSpecificWarnings>4127;4200;4204;4221;4115;4201;4100</DisableSpecificWarnings>
       <C99Support>true</C99Support>
@@ -171,7 +171,7 @@
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_WINSOCKAPI_=;_CRT_SECURE_NO_WARNINGS;_WINSOCK_DEPRECATED_NO_WARNINGS;_WINDOWS;_USRDLL;LIBFABRIC_EXPORTS;HAVE_CONFIG_H;ENABLE_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(AdditionalIncludeDirectories);$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>
       <DisableSpecificWarnings>4127;4200;94;4204;4221;869</DisableSpecificWarnings>
       <C99Support>true</C99Support>
@@ -195,7 +195,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;_WINSOCKAPI_=;_CRT_SECURE_NO_WARNINGS;_WINSOCK_DEPRECATED_NO_WARNINGS;_WINDOWS;_USRDLL;LIBFABRIC_EXPORTS;HAVE_CONFIG_H;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(AdditionalIncludeDirectories);$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include</AdditionalIncludeDirectories>
       <DisableSpecificWarnings>4127;4200;4204;4221;4115;4201;4100</DisableSpecificWarnings>
       <C99Support>true</C99Support>
       <ShowIncludes>false</ShowIncludes>
@@ -220,7 +220,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;_WINSOCKAPI_=;_CRT_SECURE_NO_WARNINGS;_WINSOCK_DEPRECATED_NO_WARNINGS;_WINDOWS;_USRDLL;LIBFABRIC_EXPORTS;HAVE_CONFIG_H;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include;</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(AdditionalIncludeDirectories);$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include;</AdditionalIncludeDirectories>
       <DisableSpecificWarnings>4127;4200;4204;4221;4115;4201;4100</DisableSpecificWarnings>
       <C99Support>true</C99Support>
       <ShowIncludes>false</ShowIncludes>
@@ -245,7 +245,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;_WINSOCKAPI_=;_CRT_SECURE_NO_WARNINGS;_WINSOCK_DEPRECATED_NO_WARNINGS;_WINDOWS;_USRDLL;LIBFABRIC_EXPORTS;HAVE_CONFIG_H;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include;</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(AdditionalIncludeDirectories);$(ProjectDir)include;$(ProjectDir)include\windows;$(ProjectDir)prov\netdir\NetDirect;$(ProjectDir)prov\hook\src;$(ProjectDir)prov\hook\include;$(ProjectDir)prov\hook\perf\include;</AdditionalIncludeDirectories>
       <DisableSpecificWarnings>4127;4200;94;4204;4221;869</DisableSpecificWarnings>
       <C99Support>true</C99Support>
       <ShowIncludes>false</ShowIncludes>