Creates a performance counter in a performance category. Extensibility point in the WiX XML Schema. Schema extensions can register additional elements at this point in the schema. Name for the performance counter. Optional help text for the performance counter. Type of the performance counter. Language for the peformance counter name and help. The default is to use the parent PerformanceCategory element's DefaultLanguage attribute. Extensibility point in the WiX XML Schema. Schema extensions can register additional attributes at this point in the schema.