FLAP & P3 Protocols

I am looking for any information regarding the P3 and FLAP protocalls. Any files dealing with them or any information about interfacing would be extreamly helpfull. Any examples that can be givin would be appriciated. I realise this is a broad question but I am having a diffacult time locating any (helpfull) information.

Definitions that i've found:

FLAP
FLAP is a low-level communications protocol that facilitates the development of higher-level, record-oriented, communications layers. It is used on the TCP connection between all clients and servers

P3 is an old aol 2.5 communications protocol.

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Thanks