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I've got two .NET Framwork services running, Microsoft .NET Framework NGEN v4.0.30319_X86 and Microsoft .NET Framework NGEN v4.0.30319_X64. I'm using Windows 7 64 bits so I was wondering if I still need the X86 version considering the fact that I'm writing C# with Visual Studio 2010.

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If you want to be able to run x86 applications you need both services. –  Ramhound Mar 16 '12 at 12:30
But does it need to be started with the OS or can I set its starting mode to "manualy"? –  DevAntoine Mar 17 '12 at 20:06

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