OK, found out that moun1.exe double-clicked in windows-explorer starts that graphical thing! Looks cute! And I can stop it with pressing "Q"

Then I've found out that moun1_background.exe will be started and runs in background, BUT how do I stop it? Can I kill it via Taskmanager or are there special procedures? Do I lose WUs when I just kill it via Taskmanager?

And what about the moun1_cmdline.bat, can I close the commandline-window without losing results?

That's it for a while...