Cannot serve WCF services in IIS on Windows 8

Question

When I try to serve a WCF service on IIS in a Windows 8 machine, I get the well known error

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.

The old work around was to run aspnet_regiis -i but this command seems to have been deprecated in Windows 8 yielding response This option is not supported on this version of the operating system. (...).

What would be the work around?

(I have successfully enabled regular aspx pages already, so most of the IIS config seems healthy.)

Answer 1

Seemed to be a no brainer; the WCF service should be enabled using Programs and Features -> Turn Windows features on or off in the Control Panel. Go to .NET Framework Advanced Services -> WCF Services and enable HTTP Activation as described in this blog post on mdsn.

From the command prompt (as admin), you can run:

C:> DISM /Online /Enable-Feature /FeatureName:WCF-HTTP-Activation
C:> DISM /Online /Enable-Feature /FeatureName:WCF-HTTP-Activation45

If you get an error then use the below

C:> DISM /Online /Enable-Feature /all /FeatureName:WCF-HTTP-Activation
C:> DISM /Online /Enable-Feature /all /FeatureName:WCF-HTTP-Activation45