Unregisters a previously registered business logic module. Business logic can be in the form of either a COM component or a Microsoft .NET Framework assembly. This stored procedure is executed on the Distributor where the custom business logic was registered.
sp_unregistercustomresolver is used in merge replication.
Use sp_enumcustomresolvers at any server in the replication topology to return the list of registered custom business logic modules or COM resolvers available to the topology.