[Faoj]

Probably not, but how would I do that?

Ie., I have tried running the updater two ways:
(1) Pressing the 'launch' button on the web page (The one that says 'Install DrumsUI Updater', the URL for which is in the updater zip file).
(2) Entering a command via the windows Run window (this command being "javaws http://updater.pala.de/drumsui.jnlp").

There is no executable for me to run (that I know of) and neither of (1) or (2) have a way to control whether or not you are administrator.

UPDATE:
(a) I found, in a temporary IE directory, a local copy of drumsui.jnlp. Using that instead of the one from pala.de had don affect.
(b) I set the 'execute as administrator' flag on "javaws.exe". That, too, had no effect - even though I know it was running as administrator because I got a pop-up from windows asking me if I wanted to run the program.

In both cases, the results were the same as before - a copy of javaws.exe in my process list, but apparently blocked (or something), because nothing further happened.