I couldnt find a solution at the forum so I finaly open my own thread.
I tried to set a server up and connect from a client to it. I got the commercial licence so I thought it wouldnt be a problem but each time I try I get the unsupported feature error. Even after compiling.
After some tests I think the session_open/session_connect is not supported, I just dont get it how make my programm work through the internet if this isnt supported.