XP Mode

Transferring/Moving a VHD from Windows Virtual PC (Windows XP Mode) to another computer

move xp mode to another pc

Shut the virtual machine down (do NOT hibernate it)

Locate the VHD file and back it up to an external drive, or copy it to the target PC across the network.

Install Virtual PC on the target Windows 7 Professional PC.

Create a new virtual machine and at the  "Add a virtual hard disk" screen. choose "Use an existing virtual hard disk".

Choose the backed up Windows XP mode VHD as the existing virtual hard disk. 

Finish the New Virtual Machine wizard and start up the VM.

2. 

Create multiple Windows Virtual PCs with Windows XP Mode