Four leading Windows programming experts systematically reveal ATL's inner workings, explaining not just how ATL works, but why it works the way it does. Client-side developers will master ATL's resources for windowing, COM control, MFC integration, web service proxy generation, and more. Server-side programmers will discover ATL's full COM server and object services, and its extensive support for high-throughput, high-concurrency web applications, and services. Every Windows developer will learn powerful ways to increase flexibility, reduce overhead, and maximize transparency and control.