handakes said:
i don't know first thing about basic..so i am pretty much stuck here since the script you sent me have an error in line 3 that i -of course- can't fix..
anyway, thanks for the effort, you have been a lot of help :)
It's possilbe you may be able to contact the author on AutoIt Forums

Hooking into system handler, esp. if you are not a programmer as you yourelf state, is a risky business. You may find you cannot shut down your machine at all if you do manage to hook into the shutdown call. I would lobby the authors of the software. A brute force approach may be just to set a timer that kills that software say, 19 minutes into its 20 minute log off timer or something along that idea.