Returnil is offering the Virtual System Premium Edition ( $24.95 value ) of their virtualization package for free until January 2, 2009 as part of Ghacks.Net Christmas Giveaway. You download Returnil Premium and visit this page to receive your Returnil Premium license one year and includes one year of free customer support. Note that you won’t get your license key emailed to you until the new year.
Returnil Virtual System Premium is a program that can emulate the operating system in a sandbox – a virtual environment – so that changes have no effect on the system itself but only to the sandboxed copy of it. It provides an altogether different and highly complimentary level of defense and is designed to protect your computer from all types of software, downloads, websites or anything else that might harbor viruses, spyware and other malicious programs.
Returnil virtualization technology clones a computers System Partition and boots the PC into this system rather than native Windows, allowing you run your applications in a completely isolated environment. Hence the session and all activity, malicious or otherwise, will happen in the virtual environment, not in the real PC environment. If the PC is attacked or gets infected, all you need to do is to simply reboot the PC to erase all changes. After reboot, the system will be restored to its original state, as if nothing ever happened. All of this without sacrificing computer performance or usability.
This works on Microsoft® Windows® XP/ 2003 Server/ Vista 32-bit . ( Thanks Ghacks )