Hyper-V Program Manager
One of the most common questions I get asked is 'What is the difference between Virtual PC and Virtual Server?' - so we now have a handy little whitepaper that details this for people:
Abstract: Microsoft® Virtual PC 2004 is a virtual machine solution for desktop operating systems. Microsoft Virtual Server 2005, on the other hand, is a solution for server operating systems. Although Virtual PC and Virtual Server share many features in common, they are designed for different purposes. As a result, some of their features are also quite different. This white paper explains the differences between Virtual PC and Virtual Server and discusses the scenarios in which it is appropriate to use one or the other.