The update to Windows Virtual PC to support running on systems without hardware virtualization is now available for download. You can grab it here:
- For 32-bit host operating systems: http://www.microsoft.com/downloads/details.aspx?FamilyID=837f12aa-1d37-464e-ae59-20c9ecbebaf6
- For 64-bit host operating systems: http://www.microsoft.com/downloads/details.aspx?FamilyID=e70dd043-e262-43c0-a002-446567f1e2b4
You can also read the full KB article here: http://support.microsoft.com/kb/977206