Meta Data Services Programming
IInterfaceMember2 ServicedByBaseMember Collection
A ServicedByBaseMember collection contains the base member that provides the implementation for a member on another interface.
This collection can contain one interface member object. This collection is the origin of a relationship collection that maps the correspondence between the base member and an alias. When you populate this collection, you must also populate the ServicesDerivedMember collection to complete the relationship.
Dispatch Identifier: DISPID_IInterfaceMember2ServicedByBaseMember (100)