Ah, okay. Do you have admin rights on your pc?

Maybe, we can collect the experiences with Quadraxas' demo here.

I've got windows xp and it asked me only whether it is allowed to install the plug-in, too.

What do you think about the customers: Do they hesitate to install the plug-in?

http://www.puppenheim.org/
http://www.wuerfels-welt.de
Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip
Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip
http://www.puppenheim.org/blender_starting_main_settings.txt