RVP (Rendezvous Protocol)
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Microsoft Exchange 2000
(Note that this name is preliminary). The Microsoft published protocol that is used between the MSN Messenger service and the Instant Messaging server that is implemented on Exchange 2000. RVP uses an extended subset of HTTP-DAV with an Extensible Markup Language (XML) payload to send subscriptions and notifications between Instant Messaging clients and servers. [Exchange 2000]