When I made a slipstreamed ISO before, it incorrectly recognized my OS as HOME EDITION, and when I installed with it and it completed and rebooted and I logged in the first time, I got the error: "The product key is not valid for this media type. Code: 0X80040509" I did not add the key to the disk, I manually type it in during install. But this key is a VL1.0 key and will only work with the correct media. Making a duplicate of it works fine and has before. what I am unsure of is whether slipstreaming SP2 into it affects the key or not. Or is it the incorrectly identified OS source in Nlite that causes this problem?? I couldn't find any info in the forums on this so it may be a unique issue. Again, any input is greatly appreciated!