Hey xD, for a long time i've been wanting to understand Au3's TCP and i havn't rly understood it, but earlier today i read alot in the forum and now i think i've figure'd out how it works but my script ain't working for some reason?? Server: Dim $user[101] $user[0] = 1 TCPStartup() $socket = TCPListen("127.0.0.1",6162) If $socket = -1 Then MsgBox(0,"Error","You fail!") Exit EndIf While 1 If $user[$user[0]] = -1 Then $user[$user[0]] = TCPAccept($socket) If $user[$user[0]]