Pdh.dll – Pre Service Pack 3 Revision History for Windows Vista SP2, Windows Server 2008 SP2 and Windows Small Business Server 2008 (SBS 2008)

31-Oct-2012 – 6.0.6002.22962 – Pdh.dll – x86/x64 – http://support.microsoft.com/kb/2760730 – Description of an update rollup that resolves interoperation issues in Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1, and Windows Server 2008 R2 SP1

23-Jul-2010 – 6.0.6002.22453 – Pdh.dll – x86/x64 – http://support.microsoft.com/kb/2268318 – Duplicated data may be in the Performance log when you use the Performance Logs and Alerts service to collect performance data in Windows Server 2008, in Windows Vista, in Windows 7, or in Windows Server 2008 R2

14-May-2010 – 6.0.6002.22405 – Pdh.dll – x86/x64 – http://support.microsoft.com/kb/2028603 – A Data Collector Set may not restart after the stop condition is met in Performance Monitor on a Windows Vista or Windows Server 2008-based computer

12-Aug-2009 – 6.0.6002.22197 – Pdh.dll – x86/x64 – http://support.microsoft.com/kb/974605 – The Data Collector Set may not start on a computer that is running Windows Server 2008 or Windows Vista

05-Aug-2009 – 6.0.6002.22191 – Pdh.dll – x86/x64 – http://support.microsoft.com/kb/974248 – The log file size grows larger than the maximum file size limit that was set in Performance Monitor if you select a Comma Separated log format or a Tab Separated log format on a computer that is running Windows Server 2008 or Windows Vista

15-May-2009 – 6.0.6002.22137 – Pdh.dll – x86/x64 – http://support.microsoft.com/kb/970838 – The handle count and the memory usage of an application keep increasing if the application calls PDH APIs to add and delete V2 performance counters on a computer that is running Windows Server 2008 or Windows Vista