Hi guys- this is my first post here- I'm looking forward to checking out the forum more! So here's my question: Actually, some quick background- I have used nlite with xp & SP's as well as xables updates, and I test unattended installs on virtual box. I have some Idea of how to do this stuff... I have a windows business upgrade DVD. Going the long way about it, I used the clean install method, but now I want to build a slipstream with sp1 and Ryan's updates. How do I make an unattended slipstream that does a clean install with an upgrade DVD? Thanks in advance for your help. Also, FYI- my current build appears to be buggered and will not be long for this world. I'd be really gratefull for some input soon! Thanks again!