I have set up a web service - its my first having the web API as a separate site. I can access a web page on the site but when I call a service, (e.g., https://service.sitename.com/api/servicename), I get the following error: Http Error 500.21 - Internal Server Error - Handler "ExtensionlessUrlHandler-Integrated-4.0" has a bad module "ManagedPipelineHandler" in its module list. From other site recommendations I installed Asp.Net 4.5 from the Add or Remove Windows program men. But, I get still the same error. Any suggestions?
We are using Windows Server 2012 R2.