HTTP ERROR 404.3 -Not Found

HTTP ERROR 404.3 -Not Found 

You are trying to access your WCF web service on IIS7 or higher and receive a 404.3 error stating the folowing:

HTTP Error 404.3 - Not Found The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map.

In the iis when you are trying to browse any service like .svc or any .config file the system will open that page .

solution :- Install WCF support as following:

Open the command prompt and paste the  following command

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"%windir%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\ServiceModelReg.exe" -r -y

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