VS 11不再支持Windows XP.这是微软设计的.

VS 11 no longer supports Windows XP. This is by design from Microsoft.

http://connect.microsoft.com/VisualStudio/feedback/details/690617

此行为是设计使然的，在MFC和CRT for Visual Studio 11 Beta中.支持的最低操作系统为Windows Server 2008 SP2和Windows Vista. Beta版(设计时或运行时)不支持Windows XP.

This behavior is by design in MFC and CRT for Visual Studio 11 Beta. The minimum supported operating systems are Windows Server 2008 SP2 and Windows Vista. Windows XP is not a supported operating system for the Beta release (design-time or run-time).

进一步阅读讨论内容，可能会在发行版本中支持Windows XP.我不会相信它.

Reading further into the discussion, there's a possibility that Windows XP may be supported in the release version. I wouldn't bank on it though.

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