I have been reading the following link here: http://technet.microsoft.com/en-us/library/cc778986(WS.10).aspx
about the perfmon /wmi counter
"When this option is specified, the program obtains performance data by means of Windows Management Instrumentation (WMI) instead of the registry. WMI Hi-Perf providers can then expose performance counters, which in turn appear in System Monitor or are logged by the Performance Logs and Alerts Service. For Windows XP and the Windows Server 2003 family, all WMI counters now appear through the use of a reverse adapter regardless of whether you use the /wmi option"
Regarding the quote, does that basically mean that we only need to use the /wmi switch on pre Windows 2003 Server machines? From Windows 2003 Server onwards, WMI counters appear in Perfmon regardless of using that switch?