The raw value generally can't be used directly but instead must be processed by comparing the raw values of two different samples and their time difference to determine the effective sampled metric value.
Requirements
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