I did see something a while ago that explained how to install windows update v4 silently, i assume you could do the same thing with WU v5... Looking back through my notes, i found the following (related to WUv4, so adjust it as required), it's something I probably copy/pasted from some other thread on this site, or maybe somewhere else, i dunno, but here it is... I just tried changing the v4 in that URL to v5 to test it but it just took me to the WU site rather than giving me the cab file to download, so I'll leave it to you to find the package you need. Hope that helps somewhat, or at least shows you it was possible so you don't give up just yet... Regards