Nuhi, unfortunately, I'm not exactly sure since I've been formatting, reinstalling, etc all day. All I know is that I was running Vlite, it stopped w/error message, I ran it again and just happened to be looking at the status bar of my C-drive (in Vista pre-SP1) and noticed that it was red, meaning space was very low and then I realized Vlite had filled up the partition. It might be worth automatically deleting the temp files before an integration ...