Environment
Novell ZENworks 7 Desktop Management Support Pack 1 - ZDM7 SP1
Situation
When you try to run a ZENworks Desktop Management update against a server that already has the updated version, the server disappears after you select it in winsetup without error .
Resolution
The update has been modified to check the registry on the server to compare myserver\software\novell\ZENWORKS\ZfD\Version. If that setting is same or newer, then the server cannot be selected.