wcfiisiis-7

HTTP Error 404.3 - Not found - The page you are requesting cannot be served because of the extension configuration

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.

what could be the reason of this error for the WCF service hosted on IIS 7.

Solution

  • Answered here

    Please make sure you've activated WCF components from here.

    Or alternate and easy way is, go to control panel -> Turn Windows feature on or off -> and make sure you've all the options ticked as mentioned in below screenshot.

    enter image description here

    Run from cmd:

    %windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -ir