Clone Virtual PC images

Courtesy of http://www.pcmech.com/article/dont-rebuild-virtual-pcs-copy-them/

"One very handy trick I found is that you can copy virtual hard drives (.vhd) files and instantly get another environment. For example, you could build a new virtual PC hard drive and load XP with all the updates and then simply copy the VHD file to a new file name and, whola!, you now have two ready to go environments. All you have to do is just run through the virtual PC creation wizard and set it to use an existing hard drive (your copied VHD file) and you are ready to go."