thanks for your reply. what im confused about is that i thought that byte was used to define the function of the packet 00 for PING, 01 for PONG, 80, 81 etc.

do you mean that there was a 0x30 function in the older clients?

i'm fairly sure that the client i connected to was one of the newer limewire servents.

im sorry if this is a stupid question, im just starting out and my brain's bleeding from analysing packets ...

thanks

ben