Overview:
You have Office Web Apps 2010 installed, Word and PowerPoint viewing does not work, but the editing does.
The appserverhost.exe process is crashing on startup, with error:
System.ServiceModel.EndpointNotFoundException
"There was no endpoint listening at net.pipe://127.0.0.1/e31bfd4c-5d98-4dc3-8232-5d2601ca814d that could accept the message. This is often caused by an incorrect address or SOAP action…."
Cause:
The SharePoint third party workflow product Nintex cause this issue.
Workaround:
Stopping all Nintex Windows services on the SharePoint server that runs the Word Conversion Service.
