WebHost failed to process a request

 Hi all

We are having a lot of problem getting our .svc ajax services to work. After resetting the IIS everything works great but after some time our .svc ajax services stop working.

The following is c/p from the Event Viewer: 1    WebHost failed to process a request.
2    Sender Information: System.ServiceModel.Activation.HostedHttpRequestAsyncResult/36902586
3    Exception: System.ServiceModel.ServiceActivationException: The service '/Ajax/JobSearch/AutoComplete.svc' cannot be activated due to an exception during compilation.  The exception message is: Service 'HeliosAjax.JobSearch.AutoComplete' has zero application (non-infrastructure) endpoints. This might be because no configuration file was found for your application, or because no serv ...