Thank you for the answers. In the marker I found this:
ZT-180 Adhoc switcher; When I launch the application, asks me the "Super User" if I want to give her root-right, when I said yes, says the Superuser you are given su-right, but the application says: the tablet is not Rooted.
and this: WiFi Ad Hoc enabler;
This application aborts with an error message.
The tablet is Rooted and set rw, I can copy system files in the terminal, move, rename, what I want, and also runs the Rootexplorer.
Maybe I can just not use the programs will not. If someone can help me I would be very grateful.
Thank you Peppi