ActiveXperts Network Monitor 2019 proactively manages network servers, devices, databases and more.

Microsoft Resource Kits - Windows 2000 Resource Kit

Counters.chm  (Windows 2000 Resource Kit)

The Windows 2000 Resource Kits help IT professionals deploy, manage, and support Windows 2000 operating systems.
There are a number of Windows 2000 Resource Kit software tools available for free download from Microsoft. These tools are listed below, and can help you streamline administrative tasks such as managing Active Directory™, administering security features, working with Group Policy and Terminal Services, automating application deployment, and other important jobs.

Counters.chm - Windows 2000 Performance Counters
The Windows 2000 Performance Counter Reference describes all performance objects and counters provided for use with tools in the Performance snap-in of Windows 2000. Use this reference to learn how monitoring counter values can assist you in diagnosing problems or detecting bottlenecks in your system. See the Windows 2000 Resource Kit Release Notes (Readme.htm) for more information.