This packet is transmitted by Secondary clients to its Primary host to undertake a "whois" exchange with a client selected by the Secondary client.


This is the packet format

[0x1389][ Packet Data Length : 2 ][ "WinMX " : 6 ][ User IP & Port  ASCII : 12 ][ 00 : 1 ][ UserName : S ][ 00 : 1 ]

This packet receives a 0x138A packet in response unless the selected client fails to respond, in this case a 0x138B packet is delivered with an indicator relecting the nature of the failure.