HTTP Error 404.3 – not Found
Error: 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. Resolution 1. Start the command window (cmd) as an Administrator. 2. Navigate to: C:\windows\Microsoft.Net\Framework\v3.0\Windows Communication Foundation\ In case you are running on a 64Bit machine, than navigate to: C:\windows\Microsoft.Net\Framework64\v3.0\Windows Communication Foundation\ 3. Run the following command: ServiceModelReg –i Enjoy!