Windows Management Instrumentation

Windows NT has always had integrated performance and system-event monitoring tools. Applications and the system typically use the Event Manager to report errors and diagnostic messages. The Event Viewer utility lets administrators view event output from either the local computer or another computer on the network. Similarly, the performance counter mechanism lets applications and operating system components report performance-related statistics to performance-monitoring applications such as the Performance Monitor.

Although the Windows NT 4 event-monitoring and performance-monitoring features met their design goals, they had limitations. For example, the programming interfaces differ from one another, and this ...

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