What does setup do? Does it only add the NodeLevelUpdate feature or does it install something that already has been installed? I don’t want to loooose data and I don’t want to break Tamino. Will I get the problems written in that thread?
By installing client only the database server and databases won’t be touched. It will just install the client stuff but you need to ensure the nodelevelupdate is installed.
I believe this installation does not install the Microsoft XMLDOM control - that is up to you to download and install. As far as I remember anyway.