Go get Virtual Box and since you have your W7 DVD, install W7 to a quick virtual machine. Doesn't have to be fancy or complete. Just enough to run regedit and get your info.
Unfortunately, I've made some changes to the registry file: (HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \ Control\ Print), and now my windows isn't configuring printer properly.
Could someone help me providing the registry file?
Now I understand how crucial it is to back things up!