I don't know any German but judging from the Title and "Logitech G402" I'm guessing you need a macro for that mouse??
I have Logitech G300 which I have posted before, on the forums if you look at my Threads.
Perfectly working IWJ/Airhug(2 speeds) And RC(3rd button)
Could try and see if they work for your mouse.
I also have perfectly working FlashStep which I can't release to just anyone due to the amount of time it took me to find the correct delays. :P