Virtual PC 2007 SP1

Microsoft’s Virtual PC 2007 Service Pack 1 is a freeware that lets you run multiple operating systems and switch between them instantly. Although this is most useful for developers to visualize applications in different OS simultaneously, this is also useful for the regular computer user. For example, you may have older software that you don’t want to reinstall. With Vista as host OS, you can run Windows Server 2008, Windows 2000 Professional and Server, Windows 98 Second Edition, Windows Server 2003 Standard Edition, Windows NT 4.0 Server, and some forms of IBM OS/2 as guest OS. Virtual PC 2007 is available as a free download from the Microsoft website.