I have a download of ROLLBACK RX 9.1, is RAR files. i can open but i need read some opinions, because i read that some people had problems with that software, specialty in windows 7 series. and I want to burn in CD because is not for this computer. is for my windows 7 ultimate. by the way i have 3 partitions in the same hard drive, with XP, 7 home and 7 ultimate. i need to know if works on one OS or if works on all 3 at the same time, when you go back. please explain all you know and i thank you.