PDH

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Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion

Description

The PDH subkey stores configuration data for the Performance Data Helper dynamic-link library (Pdh.dll). PDH is a library of performance data collection and processing functions used by performance monitoring programs, such as System Monitor.

This subkey does not exist in the registry by default. You can add it by using the registry editor Regedit.exe.