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DCOM extends Microsoft`s Component Object Model to allow communication between components distributed across a network. This book shows you how you can write components to take advantage of DCOM.Who is this book for?This book is for experienced C++ programmers who want to understand DCOM or further their knowledge of COM. Knowledge of Windows programming is essential, while knowledge of MFC is preferable. Code samples use Visual C++ 5, MFC and ATL. What does it cover?The book starts by examining why we need to be able to implement and distribute code objects, and looks at the various systems of distribution that currently exist. The book then narrows the focus down to sharing data and functionality on Windows. This leads into an examination of COM, and from there, logically, to DCOM. We show how DCOM builds on the foundations of COM and RPC. You`ll quickly get to grips with the essentials of DCOM programming and we build on this base with thorough coverage of MIDL, Microsoft`s Interface Definition Language. MIDL allows you to define your interfaces, create Type Libraries and provide marshaling support. All of these topics are covered in depth and backed up with strong code examples written using the latest tools. The latter half of the book looks at the design and implementation of distributed applications. Each chapter covers a topic of prime importance to DCOM programmers. Security is fully explained, starting with the NT security model and exploring how it relates to DCOM. You`ll then see how to write your DCOM servers as NT services, before being drawn into the murky world of multithreaded applications. The book shows how to use threads in Win32 and in DCOM servers, covers the different threading models and also looks at the issues of passing interface pointers between threads. Finally, you`ll see how Microsoft Transaction Server can ease the life of a DCOM developer as well as the new issues introduced by this product. What`s special about this book? COM to DCOM explained in full Practical C++ code examples throughout Common pitfalls exposed How DCOM works at the low level Extensive coverage of marshaling MIDL fully explained Practical DCOM security Multithreading issues explored DCOM and Microsoft Transaction Server.
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