Happy new year 🙂
As of this morning, a revised release candidate build of Virtual PC 2007 is now available on Microsoft Connect. You will need a passport account to login. If you're not already participating in the Beta, go to available connections and subscribe to "Virtual PC 2007 Beta". Then select "my participation" and follow the appropriate links to download either the x86 or x64 version depending on your host operating system.
Please remember to remove and reinstall the VM Additions from each guest.