You can use Virtual PC to run multiple operating systems at the same time on the same computer. I use Virtual PC at the office to test our software on multiple operating systems. I can be in my work environment and have a test environment running in a separate window. It’s pretty slick – I love being able to install all kinds of software without messing up my main work environment.
Why is Microsoft giving Virtual PC away?
Microsoft views virtualization as a tool. Virtual PC is used for a number of reasons, but the primary reasons are for development and test scenarios and application compatibility. We already provide Virtual PC as part of MSDN for development and test users, and given that all our other application compatibility tools are free – charging for Virtual PC did not make much sense. – Virtual PC Guy’s Weblog MSDN