| Event Id | 4099 |
| Source | wmiadapter |
| Description | Open of service failed. |
| Event Information | Explanation : The performance counter DLL could not communicate with the Windows Management Instrumentation (WMI) Performance Adapter service. WMI allows developers to define high-performance objects. WMI includes a performance counter DLL that makes these performance objects visible in Perfmon. This DLL communicates with WMI through the named WMI Performance Adapter service. When the performance counter DLL cannot communicate with the WMI Performance Adapter service, WMI high-performance objects are not visible in Perfmon. The most common reason they cannot communicate is that the service is not enabled (start type=disabled). Most high-performance objects come from device drivers such as those commonly used for batteries in laptops. User Action : To verify that the WMI Performance Adapter service is enabled Click Start, point to Control Panel, point to Administrative Tools, and then double-click Services. Double-click WMI Performance Adapter. In the Startup type list, click Manual. To verify that there are high performance counter objects in WMI Use Cscript to run the following script: Find all performance classes computer = “.” namespace = “root\wmi” Set WMISvc = GetObject(“winmgmts:\\” & computer & “\” & namespace) Set colSWbemObjectSet = WMISvc.Subclassesof(“Win32_Perf”) for each cls in colSwbemObjectSet wscript.echo “Class name: ” & cls.path_ next The output should look approximately like this: Class name: \\YOUR-MACHINE\ROOT\wmi:Win32_PerfRawData Class name: \\YOUR-MACHINE\ROOT\wmi:Win32_PerfFormattedData Class name: \\YOUR-MACHINE\ROOT\wmi:MSBatteryClass Class name: \\YOUR-MACHINE\ROOT\wmi:BatteryTemperature Class name: \\YOUR-MACHINE\ROOT\wmi:BatteryStatus If Win32_PerfRaw and Win32_PerfFormattedData are the only subclasses, then there are no high-performance objects in WMI. If there are high |
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