No idea how you possibly made it - 回複：Virtual pc 2007在win7上跑得很好。

unless your computer supports HAV and you refer Windows6.1-KB958559-x86.msu (it's Virtual PC, not Virtual PC 2007) to VPC2007 in confusion. MS also states such in its official website http://www.microsoft.com/downloads/details.aspx?FamilyID=04d26402-3199-48a3-afa2-2dc0b40a73b6&displaylang=en#Requirements Read the last as

"Virtual PC 2007 runs on: Windows Vista™ Business; Windows Vista™ Enterprise; Windows Vista™ Ultimate; Windows Server 2003, Standard Edition; Windows Server 2003, Standard x64 Edition; Windows XP Professional; Windows XP Professional x64 Edition; or Windows XP Tablet PC Edition"

If it could be in more details how to manage running Virtual PC 2007 in Win7, I may give it a try next time. Thanks in advance.