This section provides a brief introduction to COM and ATL.
Provides an overview of the Component Object Model's (COM) fundamental concepts, including interfaces, IUnknown, reference counting, QueryInterface, marshaling, and aggregation.
Discusses, briefly, what the Active Template Library (ATL) was designed for, template libraries, and ATL version numbers. Includes recommendations for choosing between ATL and MFC.
The Windows SDK material on COM.
Provides links to conceptual topics on how to program using the Active Template Library.
Provides reference information and links to the ATL classes.