www.mojopac.com offers free virtualization software that enables you to save all of your PC settings and applications onto your iPod or USB drive, and then load it onto any computer you are usiing.
I also found a software similar to Mojopac, which is called Hopedot VOS .
It generally has the features of Mojopac. But unlike Mojopac‘s shortness of only applying in Windows XP, it can run in Microsoft Windows 2000, XP, 2003, and 7.
