Perfmon

HKCU\Software\Microsoft

Description

The Perfmon subkey stores user-specific configuration data for Performance Monitor 4 (Perfmon4.exe), a performance monitoring tool designed for Windows NT 4.0 and earlier. In Windows 2000, Performance Monitor 4 has been replaced by System Monitor, but Performance Monitor 4 is included on the Windows 2000 Resource Kit CD-ROM for compatibility with earlier systems.

Note Image Note

The Perfmon subkey appears in the registry the first time you use Performance Monitor 4. You might need to run Performance Monitor 4 more than once for all of the default entries to appear in the Perfmon subkey.

The entries in the Perfmon subkey only apply to Performance Monitor 4, a tool provided only on the Windows 2000 Resource Kit CD. They do not affect System Monitor. To configure System Monitor, use the System Monitor Properties dialog box.