SVC reports “Unable to provide the page you requested due to an extension configuration issue. If the page is a script, add a handler. If the file should be downloaded, add a MIME map. “HTTP error 404.3 —

Cause: The system does not register the MIME mapping of SVC files for THE WCF service for IIS by default.

Run C:\Windows\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\ servicemodelreg. exe -i as an administrator