System.ServiceModel 4.0.0.0 System.Enum If the specified peer resolver is unavailable, a will be thrown when an attempt to use the resolver is made. Determines the type of peer resolver being used. Field 4.0.0.0 System.ServiceModel.PeerResolvers.PeerResolverMode If available, a custom resolver is used. If one is unavailable, the PNRP peer resolver is used. A peer resolver is considered "available" if the and properties are set on it. Automatically determines the type of resolver to use from the information set on the binding. Field 4.0.0.0 System.ServiceModel.PeerResolvers.PeerResolverMode A custom resolver is used. Field 4.0.0.0 System.ServiceModel.PeerResolvers.PeerResolverMode The PNRP resolver is used.