The migration tool supports migration from Windows XP to Windows Vista and Windows Vista to Windows XP-based computers.

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According to the Microsoft Web site, the operating systems affected include Windows XP, Windows XP Service Pack 1, Windows 2000 SP2, Windows 2000 SP3 and Windows 2000 SP4.

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Last year, Microsoft was forced to release a bowdlerized version of its Windows XP software, later named Windows XP Home Edition N--the 'N' in the new name standing for "not with media player".

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