System.ServiceModel 4.0.0.0 System.Enum This enumeration is used to configure the property to indicate whether performance counters are enabled for diagnostics purpose. Specifies whether performance counters for the assembly are enabled. Field 4.0.0.0 System.ServiceModel.Diagnostics.PerformanceCounterScope Performance counters can be viewed at runtime. Field 4.0.0.0 System.ServiceModel.Diagnostics.PerformanceCounterScope Performance counters are disabled. This is the default value. Field 4.0.0.0 System.ServiceModel.Diagnostics.PerformanceCounterScope Only performance counters relevant to this service is enabled.