Yes, I did add an attempt at XP support, although I haven't tested it. Let me know if it works.

I am using XP 64bit, and wow is under program files (x86) will that have an effect on this script running properly?
Yeah, in that case you just need to specify the source path explicitly:

Code:
new-wow c:\wow1 -sourcePath "${env:ProgramFiles(x86)}\World of Warcraft"