I have a few different versions of XP that I have installed on a PC without having to type in the registration codes (these are custom modded "lite" versions). When I try installing them into Parallels I can skip the first time it asks for a code by just unchecking the box but when the last step comes up it wants me to enter the code. This version of XP has no code and I never got this when I installed it on a PC. Like I said, I tried a few versions and got the same thing each time. Does anybody know a way around this or am I just going to have to buy a copy of XP?