Virtual PC is an application that provides a virtual x86 environment in which the Windows operating system can be run. Linux operating systems can also be run within Virtual PC, although this is not officially supported. Windows Virtual PC is available free for Windows 7, and is designed to provide a way to run older Windows applications that are not compatible with Windows 7. Virtual PC 2007 is freely available for earlier versions of Windows like Vista and XP.
This guide shows you how to install Virtual PC, how it can be used to run older and otherwise incompatible applications, and compares the differences between Virtual PC, VirtualBox and VMWare.