Microsoft releases the new Virtual PC 2007 today and guess what? It’s a free application. Unfortunately for Mac users you wont be able to get this new release. Microsoft only developed Virtual PC 2007 for Windows only and supporting both Windows 32-bit and 64-bit.
Supported host operating systems are Windows Server 2003, Vista Business, Vista Enterprise, Vista Ultimate, XP Professional, XP Professional x64, and XP Tablet PC Edition.