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Editorial Team
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Asked: 2026-06-10T15:24:23+00:00

When I run my WCF in normal mode it works, but when I run

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When I run my WCF in normal mode it works, but when I run through the Azure Computer Emulator on my local PC, the port numbers are different. For instance, the WCF page opens up in under the address: http://localhost:81/ServiceName1.svc, but the WSDL address says

You can also access the service description as a single file:

http://pc-name1:82/ServiceName1.svc?singleWsdl

When I try to connect using WCF test client, it is not working when I try to fetch the address http://localhost:81/ServiceName1.svc or the address http://pc-name1:82/ServiceName1.svc

Do you know what might be happening? Has anyone noticed this when using the Azure emulator?

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  1. Editorial Team

    Have you gone through the Hosting WCF within Windows Azure exercise? This behaviour is explained. You need an update to the WCF – KB981002- WCF: Hotfix rollup update, which will add a special behavior for your WCF services:

    7.About the System.ServiceModel configuration above:

    1. For this example we are exposing a metadata exchange (MEX) endpoint in addition to the service main endpoint. This will expose
      the service metadata and thus allow service references to be added to
      this service in Visual Studio.
    2. The useRequestHeadersForMetadataAddress behavior is a special behavior that is defined in KB981002- WCF: Hotfix rollup update. It
      allows WCF to serve correct metadata behind load balancers. Windows
      Azure web roles are load balanced between one or more physical
      servers.
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