Thank you for the provided solutions. However: In my environment I want to control which updates are installed without making use of WSUS. Slipstreaming into the image is fine, but does not help me to maintain running machines. I am looking for information on how to install a set of tested windows 2008 updates. In the past that was easy -> see script bit. Although the script of IcemanND is very cool, it is not 100% what I need. I assume I only need to know what kind of switches I can use to silently install windows 2008 *.cab files. ( or whatever method I can use ).