[Operation] RNRSERVICE_DEREGISTER [Service already exists] Updates the object. Removes only addresses that are specified. Only marks the object as DEREGISTERED if no addresses are present. Does not remove the object from the namespace. [Service does not exist] WSASERVICE_NOT_FOUND [Flags] 
SERVICE_MULTIPLE
N o n e
S E R V I C E _ M U L T I P L E