The desktop shortcuts (or the batch files to which they point) are needed on Windows* only if you get a product which uses the ExP system (that is, new morphs or figure set ups - not just a character which uses the morphs from the ExP sets) or if you uncheck the initialise option in a DAZ installer. It runs once to build the injection files for all of your currently installed morphs and then goes unused until you or an installer next have occasion to run it. Poser users (at least prior to Poser 7) need to have at least the Runtimelibraries!DAZ folder in their default library.

Once you've got the files installed and have run the updater if needed V4.1 should behave just like V4 - no rocket science involved.

*Mac usrs need to run the utility by hand unfortunately, and there do seem to be issues on at least some systems.