I'm trying to upgrade our workstation from Messenger 3.0.3 to 18.2 (on a different server) using Zenworks silent, but so far I'm unsuccesful (shouldn't this be really basic?)
I've configured 18.2 succesfully to run totally silent on a machine where no old version of Messenger exists, but when 3.0 is already installed, it *always* presents one dialog asking if I want to upgrade/install fresh or Remove everything. I don't want that dialog.
Being unsuccesful getting rid of this, I tried to silently uninstall the previous 3.0, but have been unsuccesful doing so too. I found the uninstall String in the registry for 3.0, but that too always asks for a final confirmation (are you sure you want to uninstall...). I tried everything I can find in the depth of the internet how to deal with Installshield setups to get rid of them 100% silent, but so far have not succeeded.
Someone must have done that before?