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Rating: 
Summary: A good read, but disappointing
Review: After reading Essential COM, this book is disappointing. Essential COM may be the best book ever writen on explaining how COM works. Effective COM is very misleading. Many will make the mistake of assuming the author did his homework in writing this book. As an example in point 9 of the book, he suggest that connection points require five round trips and that bidirectional communication can be established in one round trip. Both figures are incorrect. Empirical evidence proves otherwise. In fact, the point he is trying to make is completely false. His suggestion is that callback interfaces can be established faster than connection points. This is completely untrue. If you write an application that follows his model of using callback interfaces, it will be slightly (15%) slower than connnection points.
Rating: 
Summary: Weak
Review: Although useful for revision in certain aspects (e.g. threading issues) of such a rich subject the book is, on the whole, weak. It presents an overly simplistic discussion of the problems of dual interfaces (of which there are many) and a nauseating prosyletisation of the much flawed technology MTS. The section on COM security makes a decent attempt at improving the knowledge of the reader, but fails as the writing is obtuse and laboured.Save your money, read the COM specification, and experiment. You'll gain a much deeper understanding than that speciously portrayed here.
Rating:
Summary: Weak
Review: Although useful for revision in certain aspects (e.g. threading issues) of such a rich subject the book is, on the whole, weak. It presents an overly simplistic discussion of the problems of dual interfaces (of which there are many) and a nauseating prosyletisation of the much flawed technology MTS. The section on COM security makes a decent attempt at improving the knowledge of the reader, but fails as the writing is obtuse and laboured. Save your money, read the COM specification, and experiment. You'll gain a much deeper understanding than that speciously portrayed here.
Rating: 
Summary: Read this book after Essential COM
Review: Essential COM explains how COM really works but when it comes to specific problem you can't figure out what is the best solution to it. Effective COM goes further and presents good COM programming practices. It also clarifies some material from the former book that has not been explained in sufficient depth or lacks specific examples. However the chapter about security is not sufficient. If you are interested in COM security you must read another excellent book "Programming Windows Security" by Keith Brown.
Rating:
Summary: Bible for designing and programming COM-based Apps
Review: From the general to the specific on topic ranging from MTS to security to IDL, this book contains a set of 50 guidelines that will help any COM developer. Even though the book uses C++ as its' primary language to demonstrate implementation examples, any COM developer will gain a lot by reading this book no matter what language(s) they use (see Item 9 for a great VB code snippet). I only wish the authors wouldn't have stopped at 50 guidelines! (I'll keep my eyes out for "Esoteric COM" ;) ) Jason
Rating:
Summary: bark like a dog you bird.
Review: I am one cheap programmer. I've survived, most of my 11 years buying less then 20 books (employers bought the rest). However, com objects made me loosen the purse strings. To use com objects from ASP scripts I found the following references NECESSARY:
OREILEY book on ASP,
OREILEY book Learning dcom,
Oreiley book on VBScript,
Oreiley book on Developing ASP Components. I've also noticed, that the books really do not overly overlap that I would consider any of the books a waste of money.
I found with the knowlege in those books I could (and did) create COM objects for use from C++ and ASP scripts. It was after READING the first 154 pages of this book (Effective Com...) that my com objects went from functional to being a work of art. (Ok, I'm overstating it). Things that should be obvisous can get lost in the complexity of com. Effective com looks at what's bad and good about com, and that knowlege is power after your basic com skills have been established. I'm not sure I would want to pay full price, but amazon has a good price on this book. Enjoy and have fun! nbg.
Rating:
Summary: Demise of DCOM
Review: This book was meant to help readers do DCOM more efficiently. But after learning about the gory details and ever-shifting underlying plumbings which may well defeat all one's efforts, the only conclusion is DCOM should never be hyped. Java and .Net are the far better solutions. Don't even mention the DCOM security stuff that make it a hell across domains. Hey man, you should told us that DCOM deserve to be dead at the beginning. :-( COM is for desktop, period.
Rating:
Summary: Best Practices for COM Development! Very practical!
Review: Your looking for a book that will make you a more productive COM developer, get this one immediately.
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