input: [Category] Faults [Description] WCF lets the service be configured to return all unknown exceptions as faults, even if there are not listed in the fault contracts. This aspect of the service behavior is especially useful during debugging. The download shows how to turn on this feature only for debug builds using the IncludeExceptionDetailInFaults property of the service behavior. [Last Updated] 2/24/2007 [Title] 
output: Debugging and Unknown Faults