Parameters
- instanceName
- The instance name to use, or blank or null for the default metric.
Return Value
The new metric object that was added to the collection
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2