Visual Studio 2008 is a 32-bit application and when installed on a 64-bit Windows operating system will run under WOW64. When installing VS 2008 32-bit version , the Visual Studio will install the 32-bit version 2.0 CLR on an x86 machine, and both the 32-bit and appropriate 64-bit version 2.0 CLR on a 64-bit Windows machine.
Here is the system requirement for Visual Studio 2008:
Software requirements:
32 bit OS: Windows® XP Professional with Service Pack 2 installed, Windows Server 2003, or Windows Vista
64 bit OS: Microsoft Windows Server® 2003 with SP1, Standard x64 Edition (WOW)
- Microsoft Windows Server 2003 with SP1, Enterprise x64 Edition (WOW)
- Microsoft Windows Server 2003 with SP1, Datacenter x64 Edition (WOW)
- Microsoft Windows Server 2003 R2, Standard x64 Edition (WOW)
- Microsoft Windows Server 2003 R2, Enterprise x64 Edition (WOW)
- Microsoft Windows Server 2003 R2, Datacenter x64 Edition (WOW)
- Microsoft Windows XP Professional x64 Edition (WOW)
- Windows Vista
For more information, see the links:
1. http://msdn.microsoft.com/en-us/library/ms241064.aspx
2. http://www.microsoft.com/visualstudio/en-us/products/professional/default.mspx
3. http://msdn.microsoft.com/en-us/library/ms246588.aspx
