NoteHKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PDH
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 1 | 4 | 1 |
Determines the source from which the PDH functions retrieve performance data.
In Windows NT 4.0 and earlier, the PDH functions used information stored in the registry to retrieve data collected by internal counters. In Windows 2000, PDH functions can also retrieve data stored by using the Windows Management Instrumentation (WMI) interface.
| Value | Meaning |
|---|---|
| 1 | Registry. PDH functions retrieve performance data through registry interfaces. |
| 4 | WMI. PDH functions use WMI interfaces to retrieve counter data. |
Note
Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.