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I am working with Win7 x64 system; multiple VC++ and C# projects and have moved from VS2008 to VS2012. Now I am getting warnings saying:- 

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warning C4005: '__on_failure' : macro redefinition  C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\sal.h    2883

warning C4005: '__useHeader' : macro redefinition   C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\sal.h    2872

warning C4005: '__useHeader' : macro redefinition   c:\program files\microsoft sdks\windows\v7.1\include\sal_supp.h 58

  1. I have already tried changing platform toolset to v110_xp but its not working

  2. When I added #undef code to the concerned files error was gone but that is not the way to do it.

  3. Also I saw changing SDK include directory from v7.1A to $(WindowsSDK_IncludePath) 8.0 but didn't understand how to do it.

user2583257
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  • you can access include directories from the project properties – Jim Rhodes Jul 15 '13 at 11:43
  • possible duplicate of [VS2012 C++ warning C4005: '\_\_useHeader': macro redefinition](http://stackoverflow.com/questions/14363929/vs2012-c-warning-c4005-useheader-macro-redefinition) – Yodan Tauber Apr 30 '14 at 12:19

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