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I was trying to build one of my x86 projects in x64 and I tried the solution given here

set _IsNativeEnvironment=true

"C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\devenv.exe" YourProject.sln

Now, I am getting the following error prompt when I try to open any of the visual studio solutions ....... is not a valid win32 application.

Note: I have been working on this solution for quite a while and there was no such problem.

Edit: My devenv.exe itself has got corrupted and it's size is 0 KB. I reckon that's the problem. Will try to reinstall visual studio and see if the problem persists.

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Ankit Singh
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  • A .sln file is a text file. Try opening it in notepad and see if it looks OK. Also, try opening a solution from within Visual Studio rather than via Explorer. – Harry Johnston Mar 18 '15 at 05:52
  • Actually, the problem is that now when I am trying to open any solution using visual studio I see the same prompt. When I am trying to open visual studio itself the following prompt occurs: C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common 7 \IDE\devenv.exe is not a valid Win32 application. – Ankit Singh Mar 18 '15 at 05:58
  • If devenv.exe has become corrupted that could explain the problem. Is Visual Studio the only application that is misbehaving? – Harry Johnston Mar 18 '15 at 07:25
  • Ya, only visual studio is misbehaving. Other x64 applications are working nice and fine. – Ankit Singh Mar 18 '15 at 07:45
  • Also devenv's size is 0KB when it should be something around 6-7 KB. – Ankit Singh Mar 18 '15 at 07:52
  • A repair installation might work, otherwise you may have to uninstall and reinstall. – Harry Johnston Mar 18 '15 at 19:55

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