First things first: A sensational program! Thanks a lot! @topic: I just had a related issue. I slipstreamed SP1 into my Dell OEM (Home Premium), burned an ISO and so on. I used this just now for a system rebuild and it works fine. BEFORE THAT, however, I tried it with a version, where I first had slipstreamed SP1 into said Dell OEM and afterwards used the slimming features. I removed cautiously. When I tried to install from this ISO I got an error after this first black screen which says "Loading Windows" or whatever. Error message is a classic: "Stop : c000021 unknown hard error \ systemroot \ system 32 \ ntdll.dll". If anybody needs any files for that, I may be able to provide them. It's just for the records. I am right now trying to slim a slipstreamed version only in matters of languages. See if that works. Edit: A version, where I first slipstreamed SP1 into Vista Home Premium and later removed languages and most printer drivers as well as two or three other small things worked perfectly.
