At the moment I own several Windows XP licenses (OEM and Retail) I would like to know the differences between the files on the CD's so I can use a universal (VL ?) ISO to slim down XP with nLite, integrate drivers and custom patches and then turn it into an OEM or a Retail version according to my needs by just adding the appropriate files. I've been looking all over the internet and people are talking about setup.ini file hacking but I know that's just part of it and modding this file only won't turn a VL iso into an OEM version. I've got also an "Academic Edition" version CD + key and I would like to know more about that version. What are the differences and limitations of this version compared to a standard retail version ? Again, very hard to find good information on the internet about this particular version... Hope there is someone here that can give me some good info on these subjects.