TipHKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib\
The Perflib subkey contains a <Language-code> subkey for each spoken language you configure for Windows 2000. The <Language-code> subkey stores performance counter names and their descriptions in the specified language. The <Language-code> subkey is named for the language code associated with the language. For example, the counters and definitions for the English language are stored in a subkey named 009, the language code for English (United States).
The <Language-code> subkey is a variable representing the subkeys under the HKCU\Software\Microsoft\Perflib subkey. It doesn't actually appear in the registry. This variable subkey displays the entries that can appear in any of the language code subkeys in the Perflib subkey. The actual <language-code> subkeys in your registry depend upon the spoken language you have chosen for your system.
To make changes to entries in this subkey effective, restart the Remote Registry Service or restart Windows 2000.
Tip
If particular performance counters do not appear in your performance monitoring tool, check the Application Log in Event Viewer for events recorded by Perflib. When Perflib detects disabling errors in a counter DLL, it records an event in the log and sets the value of DisablePerformanceCounters to 1 to disable the counters.
Caution
Do not change the values of entries in this subkey. This subkey is maintained by the Performance Library. If you change it, the performance tools on your system will not operate properly.