COM Server Cleanup : Now You Can Opt for a Fast Rundown

Have you ever encountered a scenario where you have a COM server that you just want to get cleaned up right away and not have to wait for DCOM Garbage Collection (DCOM GC) to kick in?  Well, starting with Windows 8 / Windows Server 2012 you can.  You can opt-in to the fast rundown path…


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 interface, which provides…

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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 application mmc.exe, version…


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 and then stops…


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 COM+ application (dllhost.exe) when it was hung…


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 server 2008 or Vista. Cause This happens because when…

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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 (WSE) Universal Description, Discovery and Integration (UDDI) Custom Web Services (ASMX) Xml Serialization .NET…