Additionally, the event log contains events that resemble the following. These events indicate that errors occured during the installation of a performance counter.
Event Type: Warning Event Source: WinMgmt Event Category: None Event ID: Date:Time: User: N/A Computer: Computer_name Description: WMI ADAP was unable to create the object Win32_PerfRawData_W3PCache_ISAServerCache for Performance Library W3PCache because property ISAServerCache already exists For more information, see Help and Support Center at http://support.microsoft.com.
Event Type: Warning Event Source: WinMgmt Event Category: None Event ID: Date: Time: User: N/A Computer: Computer_name Description: WMI ADAP was unable to create the object Win32_PerfRawData_W3PCache_ISAServerCache for Performance Library W3PCache because error 0x80041001 was returned For more information, see Help and Support Center at http://support.microsoft.com.