Feeling the pressure of VMWare Microsoft is now giving away Virtual PC 2004. Of note Microsoft has also announced that Virtual PC 2007 will also be free.
Download here: http://www.microsoft.com/downloads/details.aspx?familyid=6d58729d-dfa8-40bf-afaf-20bcb7f01cd1&displaylang=en
Virtual PC 2004 Service Pack 1 (SP1) is a powerful software virtualization solution that allows you to run multiple PC-based operating systems simultaneously on one workstation, providing a safety net to maintain compatibility with legacy applications while you migrate to a new operating system. It also saves reconfiguration time, so your support, development, and training staff can work more efficiently.
- Joel