| .NET Distributed Transactions on Enterprise Services: a demo |
| The Code Project |
| This demo shows you how to develop .NET components capable of participating in distributed transactions coordinated by .NET Enterprise Services |
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| Advanced Basics - Enterprise Services, SQL Script Editing |
| MSDN |
| Enterprise Services, SQL Script Editing |
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| Brief About COM+ |
| The Code Project |
| The COM+ documentation defines a configured component as a COM component that has been installed into a COM+ application. |
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| BUG: High Memory Usage and Handle Counts When an Application Contains ServicedComponent Objects (Q312118) |
| http://www.kbalertz.com/ |
| When you run an application that contains components that are derived from the |
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| BUG: You receive an "E_INVALIDARG" exception of type 0x80070057 when a ServicedComponent object is activated |
| http://www.kbalertz.com/ |
| (829393) - Fixes a problem in the .NET Framework where an "E_INVALIDARG" exception is thrown in a remote procedure call application because ServicedComponent objects are created faster than they are disposed of. |
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| COM+ and .NET - A practical approach - Part 1 |
| The Code Project |
| A look at COM+ and .NET |
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| COM+ and .NET - A practical approach - Part 2 |
| The Code Project |
| A look at COM+ and .NET |
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| COM+ and .NET - A practical approach - Part 3 |
| The Code Project |
| A look at COM+ and .NET |
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| COM+ Interop with .NET |
| C# Help |
| COM+ services have wealth of enterprise functionality that would be very difficult and time consuming to duplicate. Although COM+ services were originally designed for use with COM+ components, it would nice if .NET components could also use them. |
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| Creating COM+ Aware Components in .NET |
| Bipin Joshi |
| COM+ provides many middleware services like increased scalability, Transactions, object pooling, Just-In-Time activation to your components. Enterprise components typically developed in VC++ or VB are often hosted in COM+ to gain above advantages. As you might be aware that .NET components are different than traditional COM components in terms of reference counting, memory management and registration. |
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| Creating COM+ components with .NET Beta 2 |
| DotNetNut |
| Focusing on the new System.EnterpriseServices namespace, well review COM+ services available to .NET and how attributes play an important role. Then, well create a simple serviced component and go thought the process of registering our sample with COM+. |
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| Distributed Transactions in Visual Basic .NET |
| MSDN |
| Shows you how to use Microsoft Visual Basic .NET to create an OLTP system and includes complete code samples demonstrating the syntax for writing a transactional component and a transactional Web service in Microsoft Visual Basic .NET. |
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| How to Pass Managed Objects As a Parameter of a Queued Component |
| The Code Project |
| To pass an object through a queued component's method call as a parameter, the client passes the object to the COM+ recorder. The recorder marshals the object into an MSMQ message and passes it to the listener. The listener then picks up the message and passes it to the player, the player must re-instantiate the object to dispatch it to the method call specified by the client. This implies that to pass an object as parameter to the queued component, it must be able to marshal by value. Since COM+ does not provide pass-by-value semantics for standard COM objects, we need to implement IPersistStream for the parameter object. |
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| HOW TO: Deploy an ASP.NET Web Application Using Xcopy Deployment |
| http://www.kbalertz.com/ |
| This article describes how to use the MS-DOS Xcopy command to deploy a Microsoft ASP.NET Web Application.What Is Xcopy Deployment?Xcopy deployment describes deployment in ASP.NET where you use the drag-and-drop feature in Microsoft Windows Explorer,... |
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| HOW TO: Use COM+ Transactions in a Visual C# .NET Component |
| Microsoft Support |
| (816141) - This step-by-step article describes how to use COM+ (Component Services) transactions in a Visual C# .NET class. A set of database operations is considered one unit. Either all operations succeed or, if one operation fails, the whole transaction... |
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| HOW TO: Use Enterprise Services Object Pooling in Visual Basic .NET (Q317336) |
| http://www.kbalertz.com/ |
| This article demonstrates how to create a console application that uses object pooling in Visual Basic .NET. You can turn on and turn off object pooling to see how object pooling affects an application that creates many expensive objects. |
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| Implementing .NET Role-Based Security without COM+ |
| Egg Head Cafe |
| Security is important. Most developers don't like security. It requires a lot of thought. It requires study. Most developers would rather just "write code", and leave security to "somebody else". Unfortunately, if you are a developer and your job is to produce an application, then guess who that "somebody else" usually is? It's YOU. Even behemoth Microsoft got the message loud and clear. They've made security the single most important thing, above everything else. Wanna know why .NET Server, which was supposed to be released back in March, is delayed until the third quarter? Security! They weren't satisfied, and so they went back to the drawing board, so to speak. And its for real, too. The Microsoft insiders with whom I am privileged to speak with from time to time are totally focused on security. |
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| INFO: Platform Support for EnterpriseServices |
| http://www.kbalertz.com/ |
| This article outlines platform support for the EnterpriseServices namespace. |
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| Microsoft .NET/COM Migration and Interoperability |
| MSDN |
| The interoperability features of the Microsoft .NET Framework will enable developers to continue using traditional Active Server Pages, Component Object Model applications, and Microsoft Win32 DLLs, making it easier to choose if and when to migrate existing managed code to .NET. |
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| O COM+, Where Art Thou? |
| MSDN |
| The reality is that some of the overwhelmingly positive benefits COM+ offered to COM development aren't so overwhelmingly positive in .NET. In other cases, features of COM+ that were unavailable to Visual Basic 6.0 developers are fully accessible when developing in Visual Basic .NET. Like "O Brother Where Art Thou?" the underlying story is similar, but there are differences from the original. It would be wrong to assume that because you are developing an enterprise application that you therefore must use EnterpriseServices. EnterpriseServices include a list of specific services and features that should be individually evaluated to see if they make sense for your application. In this article, I will discuss these services and give some guidelines as to when each may be useful. Then we'll write some code to exploit the most common feature—2-phase transactional support. |
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| PRB: "Failed to Initialize Distributed Transactions" Error Message with Oracle .NET Managed Provider |
| http://www.kbalertz.com/ |
| (322343) - When you try to enlist an Oracle connection in a distributed transaction by using the Microsoft .NET Framework Managed Provider for Oracle, you receive the following System.InvalidOperationException exception: Failed to initialize distributed... |
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| PRB: Some Functionalities of a COM+ Application Do Not Change If You Change the Corresponding Settings in the COM+ Catalog |
| http://www.kbalertz.com/ |
| (322630) - You change the settings for a COM+ application in the COM+ catalog, but the corresponding functionalities of the application do not change. For example, after you use the JustInTimeActivation compile-time attribute in your code to enable the... |
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| Regasm2.exe - The .Net/COM+ Installation Tool |
| The Code Project |
| This article describes how to design, build and install .Net Application into the COM+ Catalog without using the ServicedComponent class in your application. The solution shows retrieving the assembly and class attributes (included custom) from the assembly file and their storing into the COM+ Catalog Objects using the C# language. |
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| Reliable Messaging with MSMQ and .NET |
| MSDN |
| This article describes how to use recoverable messages, transactions (alone or combined with database transactions), and acknowledgements with MSMQ and the Microsoft .NET Framework. This material applies to Beta 2 of the .NET Framework and Microsoft Visual Studio .NET. |
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| The Quest for ASP.NET Scalability |
| MSDN |
| Understand the architectural and design decisions affecting scalability of ASP.NET apps. See how to use Enterprise Services and MSMQ to mitigate scalability problems. |
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