One more question...when some client wants to send DCC request for sending file to other client,it must send a message according to the DCC protocol,but mIRC sends a message which violates the DCC protocol,isn't?Here is the raw message which mIRC sends PRIVMSG cygnusX :$chr(1)DCC SEND c1a3.HL3 4294967295 0 28 13$chr(1).
4294967295 is the IP address and 13 must be filesize,and 28 must be the port,then what's the 0?