HI, using winsocket i've made the experience only TCP mode is activce, does not matter if i switch to udp mode or not. i need a connection-less mode and so i need UDP. I switch to udp, start the applet, but it works always in TCP mode. I tried when the applet was running in UDP mode, sending message in UDP mode, but no reaction. Opening a telnet request i can see in the 'ConnectionRequest' procedure that the request arrives and if i needed i could handle with accept and so on. Any idea, proposal...