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Editorial Team
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Asked: 2026-05-18T09:44:52+00:00

I have a web service which I host on my machine. I use Windows

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I have a web service which I host on my machine. I use Windows 7 and IIS 7.5.

Problem: When the client tries to consume the web service, he/she gets a HTTP 405 error.

In the log file of IIS, I can see that this is refused because POST verb is not allowed.

Question: How can I allow POST verb for those requests?
Do I have to add mapping of the WSDL file? And if I do, how do I have to configure this mapping? I have checked, and in existing mappings I have nothing for WSDL extension.

Is there maybe another thing to setup on IIS to allow those requests?

Web service is built using WCF.

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  1. Editorial Team

    After hours of struggling, this is final solution that helped me (tested from fiddler):

    1. On IIS 7.5 -> YourWebsite -> Handler Mappings
    2. Choose “Add module mapping” option on the right side of the panel
    3. In “Request path” field enter *.wsdl
    4. In “Module” field enter “ProtocolSupportModule”
    5. Click on “Request restrictions” and go to Verbs tab
    6. Enter POST verb
    7. Save changes

    End voila, fiddler no longer answers with 405 but with happy 200.

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