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Microsoft Resource Kits - Windows 2000 Resource Kit

Kernprof.exe  (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.

Kernprof.exe - Kernel Profiler
This command-line tool provides counters for and profiles of various functions of the Microsoft® Windows® 2000 kernel. With Kernel Profiler, you can monitor details and frequency for each function the kernel calls, how often a process switches from User mode to Kernel mode, and, on a multi-processor computer, display information for each processor.