Buy COM and .NET Component Services (O'Reilly Windows) and get COM+ Programming With Visual Basic at an additional 5% off Amazon.com's everyday low price.

Buy Together Today: $62.33

Subclassing and Hooking with Visual Basic by Stephen Teilhet  (4)  $32.97

Visual Basic and COM+ Programming by Example (By Example) by Peishu Li  (9)

Programming Distributed Applications with COM+ and Microsoft Visual Basic 6.0 (with CD-ROM) by Ted Pattison  (35)

Win32 API Programming with Visual Basic by Steven Roman  (11)

COM and .NET Component Services (O'Reilly Windows) by Juval Löwy  (9)  $37.10

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Product Description
The importance of a book like COM+ Programming with Visual Basic lies in the fact that the Visual Basic programming environment is designed to hide as many low-level system details as possible. While this approach can speed development time by letting you focus on the task at hand, it actually hinders the process when it obscures details you need to understand or control. Such is often the case for programmers who are developing components that take advantage of COM+ services. COM+ Programming with Visual Basic takes aim squarely at the information needs of these developers. For instance, despite the marketing hype about COM+ as the new and improved version of COM, classic COM is very much the foundation on which COM+ is built: COM+ components are a particular kind of COM component. Visual Basic hides almost all COM implementation details; yet it is precisely in the area of COM+ programming that these hidden details are most important. Therefore, we've devoted significant content to exploring COM internals:

• Interface-based programming
• How COM interfaces work internally
• How COM components are activated
• How versioning COM components works in Visual Basic

The second section focuses on incorporating individual COM+ services, like transaction support, security, and asynchronous operations, into applications. The author concludes by discussing what you need to learn to transition to Microsoft's coming .NET framework. Regardless of what lies ahead for .NET, many distributed systems are being built today with COM+. COM+ Programming with Visual Basic focuses on topics relevant to distributed applications that are here to stay:

• How to use interfaces
• Passing objects by reference or by value
• What it means to have multithreaded applications
• How declarative programming works
• How to program within a distributed transaction
• How to add role-based security to applications

There's simply no other documentation available for much of what's in COM+ Programming with Visual Basic. It's destined to be the resource behind the most robust, efficient, high-performance COM+ applications.

From the Author
In response to some comments, I wanted to clarify that my book, COM+ Programming with Visual Basic, is not really about the COM+ services. For a book on the services themselves, I suggest Juval Lowy’s COM and .NET Component Services (O’Reilly).

In my book, I did not try to address every feature in COM+ -- there are a lot of books out there that already do that. I feel the real need is for VB developers to understand how things really work inside. My book is an internals book. First, I show an internal view of the COM architecture from the side of the VB compiler and then I show an internal view of the core COM+ architecture. Following this, I show an internal view of what I considered the essential COM+ services. To finish, I give an introduction to .NET and VB.NET.

So I guess a more fitting title is "How COM+ Works Internally." But now a word of caution... Like I say in the book’s introduction and like the other reviewer noted, if you do not want to know the low level details, stay away. If you are tired of C++ developers claiming to know more than us VB'ers about COM/COM+ then this is the book to get.

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Browse Sample Pages:
Front Cover | Table of Contents | Excerpt | Index | Back Cover

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