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. It 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 does not 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 the registry depend on the spoken languages chosen for the system.
To make changes to entries in this subkey effective, either restart the Remote Registry Service or restart Windows 2000.
If you cannot display particular performance counters, check the Application Log in Event Viewer for events recorded by Perflib. When Perflib finds a disabling error in a performance counter dynamic-link library (DLL), it records an event in the log. Then it sets the value of Disable Performance Counters to 1 to disable the counters.
Do not change the values of the entries in this subkey. This subkey is maintained by the Performance Library. If you change the values, the performance tools on your system will not operate properly.