I'm not quite sure what you are trying to accomplish. Are you using sysprep at all? If so try checking this out: http://technet2.microsoft.com/WindowsVista...3.mspx?mfr=true The CopyProfile setting when put in the specialize pass of the unattend.xml will automatically copy the profile that launches Sysprep to the Default user. Once things are syspreped, you can capture the image and create your ISO.