Distributed Services Support Team

Problem Description A WCF message inspectors pass a custom message header from the client caller to the WCF service hosted in a Windows service over TCP. A ClientMessageInspector adds in the custom header.  A DispatchMessageInspector looks for the Read More...

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 Read More...

Problem Description A .NET WinForms application creates a distributed transaction that inserts a row into a remote Informix OLE DB database. The .NET app uses System.Transactions and the IBM Informix OLE DB Provider. The transaction starts timing out Read More...

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 Read More...

Problem Description We saw slow Web response and high CPU in a 3-tier application under load. The application consisted of an IIS Web application front end, COM+ applications on the app server and the DB application on the backend. Cause To identify the Read More...

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 Read More...