In a rush and want to setup a virtual machine running Windows operating system as quickly as possible? Microsoft has published several VPC images complete with virtual machine configuration (VMC) and virtual hard disk (VHD) for Windows Virtual PC and Microsoft Virtual PC, originally intended for website compatibility testing with different Internet Explorer versions. But the VHD nonetheless contain a full fledged Windows operating system, and can instantly be powered on as a virtual machine.
Actually the offering of IE Application Compatibility VPC images has been going on for a while, and the images has recently been updated to included Windows 7 and IE9. As the VHDs are meant to help web designers and web developers to test their websites in different versions of IE web browser, there are many versions of VHDs available for selection, based on a mix of different operating system and different version of IE browser. All VHD contains clean install of Windows operating system and has been patched with latest security updates, with very few other modifications.
All the VHDs or the VPC images are hosted on Microsoft Download Center.