Format of NetBIOS structure "session": Offset Size Description ) 00h BYTE local session number 01h BYTE state 01h listen pending 02h call pending 03h session established 04h hangup pending 05h hangup done 06h session aborted 02h 16 BYTEs local name 12h 16 BYTEs remote name 22h BYTE number of outstanding receives 23h BYTE number of outstanding sends/chainsends