Microsoft has announced to give away Virtual PC also for FREE unlike the Virtual Server 2003 R2 they are giving away for FREE. Cool... so now both virtualization tools are available without any charge. Just a complimentary.

Whether Microsoft virtualization technology is an important component of your existing infrastructure or you're just a Virtual PC enthusiast, you can now download Virtual PC 2004 Service Pack 1 absolutely free. Microsoft is also offering the free download of Virtual PC 2007, with support for Windows Vista in 2007.

Its all here. Go ahead... Download now!

Get the Most out of Virtualization with Virtual PC and Windows Vista Enterprise

Install up to four copies of the operating system in virtual machines on top of Windows Vista Enterprise with a single license. Learn more about Windows Vista Enterprise.

See Microsoft Virtual PC 2004 in action. This demo shows how Virtual PC is perfect for any scenario in which you need to support multiple operating systems, whether you use it for legacy application support, technical support, training, or application development.

This is what the Virtual PC Guy has to say:

1. Why are you giving Virtual PC away for free?

Microsoft views virtualization as a tool. Virtual PC is used for a number of reasons, but the primary reasons are for development and test scenarios and application compatibility. We already provide Virtual PC as part of MSDN for development and test users, and given that all our other application compatibility tools are free - charging for Virtual PC did not make much sense.

2. Is the Windows Vista Enterprise licensing right restricted to Virtual PC?

No - you can use any virtualization software for this. In fact - you do not even have to use virtualization software to exercise this right. You could - if you wanted - setup a quad-boot physical computer and be licensed for all four instances.