Hi, I am reinstalling Vista Ultimate 64 bit I am doing this on a Windows XP Pro 32-bit machine. I ran the 1.1.6 installer and then I used the self extracting archive of 1.2 RC and installed that over 1.1.6. Then I started the process. I only applied a couple of tweaks (disable welcome stuff, the user account thingy and view hidden folders) and set up Unattended with key, username, password and regional settings. I chose to rebuild. In the dialogue rebuilding image it increases in size to about 3GB, but when I create the ISO it ends up being only 550MB. I mounted the ISO in Nero and it apparantly only contains some drivers and a folder with apps that I inlcuded. There is no setup.exe there or anything. I need the AIK thingy perhaps?