Move your entire Windows XP installation into Windows 7 with Zinstall XP7
Source: Greg Shultz
In this edition of the Windows Desktop Report, Greg Shultz shows you how to use Zinstall XP7 to move your Windows XP installation onto Windows 7. He focuses on the single- computer, in-place migration procedure.
This download is also available as an entry in the TechRepublic Microsoft Windows Blog.