No, not the part how its connected with B4A witch has been the problem all the time (6 months or more now). In Eclipse the code works.
It's an exampel of a working "Initialize" with ServiceConnection and "EventRaise" part i need. And that seems to exist in the sourcecode for InAppBilling library.
And if I don't get this to work we will be forced to abandon the B4A-plattform, because this Credit Card processing is a very important part of our application.