from article Building a Lightweight COM Interception Framework, Part II: The Guts of the UD - Keith Brown The Universal Delegator provides the code necessary to compose arbitrary services on top of existing COM objects, with or without the explicit

Keith s Browns most excellent Universal Delegator provides a mechanism for inserting arbitrary code between a client and an object. The TraceHook is a UD Hook that traces method calls by object name, interface name and member function name (if