IMPP (Instant Messaging Presence Protocol)
Technology› E-mail› Microsoft Email› Microsoft Exchange
Microsoft Exchange 2000
The standards-based protocol clients use to interact with an Instant Messaging server. IMPP is being developed by leading vendors, including Microsoft and Lotus. The Instant Messaging service in Exchange 2000 uses a Microsoft published protocol called Rendezvous Protocol (RVP) while IMPP is being ratified [Exchange 2000]