Have you ever wanted to run multiple operating systems on your PC. Well Virtual PC 2007 from Microsoft allows you to precisely do that. It is a powerful software virtualization solution that allows you to run multiple PC-based operating systems simultaneously on one workstation for what ever reason you may have. The software works by creating separate virtual machines on your Windows desktop, each of which virtualizes the hardware of a complete physical computer. So you can run MS-DOS, Windows, and OS/2 etc. on the same computer. You can also instantly switch between them just by the click of your mouse.
Virtual PC 2007 runs on: Windows XP Professional, Windows XP Tablet PC, Windows Server 2003, Windows Vista Business, Windows Vista Enterprise, and Windows Vista Ultimate.
Go to the Virtual PC 2007 page.