Today, after giving my lecture on what’s new in WCF 4 as part of Sela’s SDP (Sela Developer Practice) conference, I got an email from one of my clients regarding a problem they encountered when trying to deploy their WCF service to an IIS 6 server. They got exceptions when calling the service, and it seemed it wasn’t able to get hosted. After some investigation they came up with the following error message thrown by WCF: 14/03/2011 14:38: [Exception Type:=System.ServiceModel.ServiceActivationException;Application_Error...