Distributed Services Support Team

The official blog of the engineers supporting distributed technologies

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  • Blog Post: W2K8 COM+ Catalog Backup & Restore

    In very rare conditions in the past, it may have been necessary to take steps to rebuild the COM+ catalog. In Windows 2003, for example, this was performed by walking through Add / Remove Windows Components, however, in Windows 2008, this is no longer an option. Instead, we now need to us the ICOMAdminCatalog...
  • Blog Post: COM+ catalog file permissions

    On my Windows 2008 server, I noticed that whenever I tried to navigate through COM+ explorer, the MMC just kept crashing. When I go COM+ MMC, ‘My Computer’ Properties and clicked on “Default Protocols” tab, MMC crashed. Event log had the error message from Application Error event source. Faulting...
  • Blog Post: A COM+ application may stop working on Windows Server 2008 when the identity user logs off

    Problem Description You have a COM+ server application. The application is set to run as a particular user. After working for sometime on Windows Server 2008 the application may stop working and keep failing. Unless you restart the COM+ application, it won’t come back. In the meantime you may see an...
  • Blog Post: Issues to Be Aware of When Using COM+ QueuedComponent with Object Pooling

    Problem Description The component is a COM+ event class. It is also a COM+ QueuedComponent (QC) and has object pooling enabled. The clients are a COM+ event publisher. They call into the event component to fire an event. Subscribers are notified of the event. The application works for about a few minutes...
  • Blog Post: A COM+ Application That Calls the DOMDocumentWrapper::load Method in msxml3 Is Hung Intermittently

    Problem Description Intermittently a COM+ application that called the DOMDocumentWrapper::load method in msxml3 is hung. A restart of the application was required to temporarily solve the problem on a Windows 2000 SP4 machine. Cause To identify the cause of the issue we took several hang dumps of the...
  • Blog Post: Error 80070721 Occurs When Instantiating a COM Component on a Remote Windows 2008 Server

    Problem Description An application calls CreateObject to activate a COM+ component or a DCOM server component which runs on a remote machine. The call to the CreateObject may fail with the error 80070721 which translates to "A security package specific error occurred." Both machines are Windows...
  • Blog Post: Welcome to the Distributed Services Support Team Blog

    Welcome everyone to the official blog of the Distributed Services support team at Microsoft. We are a part of Developer Support and currently provide support for the following technologies: COM/DCOM COM+ DTC Windows Communication Foundation (WCF) Workflow (WF) Web Services Enhancement...
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