hmm.. well, you could try running it in windows xp mode (a virtual machine) but you'd probably have to download almost 500 MB of the installation files to install it (it's probably not already installed). but, once installed, you wouldn't have to install it again. It would be like running it on a fresh, old system without needing to actually revert to such a system -- and you wouldn't need to change any of your system files, as this virtual XP OS would run on top of your windows 7.
If you want to give it a try, see if you have it installed first. Go to Programs and Features (Add/Remove Programs control panel applet) then scroll down and look for Windows XP mode. If you don't see it then you'll need to install virtual pc:
http://www.microsoft.com/en-us/downl...s.aspx?id=3702
If you are running 32-bit windows, check and download the x86 file. If running 64-bit, check the x64 file instead.
Then download windows xp mode:
http://www.microsoft.com/en-us/downl...s.aspx?id=8002
Check the WindowsXPMode_en-us.exe file without the extra N.
Let me know if you go this route.