Large networks are likely to have WSUS (Windows Server Update Services) on the server which enables administrators to essentially run Windows Update on every computer they have at the same time from one screen, and also block updates which they don’t want.

At the moment (so any time around March) WSUS doesn’t see Windows Ultimate Extras and won’t automatically download and install them. This means that if your Vista machine’s updates are managed by the administrator, you’ll have to fetch them so they can logon and install them manually. But this is set to change - in the near future (estimated around April/May time), WSUS will be able to roll out Ultimate Extras to every Windows Vista Ultimate machine they have, but also have the ability to block certain updates (like the games perhaps!).

All the Wave Zero (the first set of Ultimate Extras) will be up on WSUS later this year for download.