diff --git a/plugins/hextray/hextray.vcxproj b/plugins/hextray/hextray.vcxproj
index e290531b..a56eb639 100644
--- a/plugins/hextray/hextray.vcxproj
+++ b/plugins/hextray/hextray.vcxproj
@@ -60,7 +60,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;XTRAY_EXPORTS;_STL70_;_STATIC_CPPLIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;XTRAY_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <AdditionalIncludeDirectories>..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
@@ -81,7 +81,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;_WIN64;_AMD64_;NDEBUG;_WINDOWS;_USRDLL;XTRAY_EXPORTS;_STL70_;_STATIC_CPPLIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_WIN64;_AMD64_;NDEBUG;_WINDOWS;_USRDLL;XTRAY_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <AdditionalIncludeDirectories>..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>