@Allen, Windows XP Mode Beta v1.1.7112.1 (x86 & x64) and you will need this before you can use XP Mode.

When installing XP mode, it will install 3 things into X:\Program Files\Virtual Windows XP.

1. KEY.txt (you can guess what this is, so copy this!)
2. Virtual Windows XP.vhd (copy this!)
3. VXPEULA.txt