Hyper-V Program Manager
Gah... I have just realized that as I was away on holidays during December I missed the December Customer Technology Preview release of Windows Vista. Thankfully this build is quite easy to install inside of Virtual PC. Before we get started - you will need two things:
For the latter - if you are using Virtual PC you can download the Virtual Server 2005 R2 trial (from http://www.microsoft.com/virtualserver) and use the Virtual Machine Additions from there. This version is supported on both Virtual Server and Virtual PC - and has a number of Vista optimizations.
Once you have this - you should follow these steps:
It runs quite well under Virtual PC: