Windows NT provides a mechanism for developers to add performance objects and counters for their applications and other software components, including non-Windows NT computers. These objects and counters can provide performance data to Windows NT Performance Monitor or to your customized performance monitoring programs.
Performance counters specific to your application can help you tune performance while you develop and debug the application. After your application is complete and installed on target systems, the counters can help system administrators adjust your application's configurable settings.