VIRTUAL PC 2007 IS FREE AND EASY! It runs multiple operating systems running inside of an operating system. Save time and money as Virtual PC allows you to maintain the compatibility of legacy and custom applications during migration to new operating systems and increases the efficiency of support, development, and training staffs.
ONCE AGIAN IT IS A FREE PROGRAM (Unlike VMWare or Parallels for Windows)
With Microsoft 2007, you can create and run one or more virtual machines, each with its own operating system, on a single computer. This provides you with the flexibility to use different operating systems on one physical computer.
For more information about the ways you can use virtual machines, see Virtual PC at http://go.microsoft.com/fwlink/?LinkId=78095.