Asynchronous WMI operations - WMI sample in VBScript

The foundations for Manageability in Windows 7/2008/Vista/XP/2000 and Millennium Edition/'98 are Windows Management Instrumentation (WMI; formerly WBEM) and WMI extensions for Windows Driver Model (WDM).

ActiveXperts Network Monitor provides the ability to build monitor check routines based on WMI. ActiveXperts has collected more than a hundred WMI samples. You can use these samples as a base for new check routines you can write yourself.

On this site, you can find many WMI samples.

The Asynchronous WMI operations WMI class can be used in ActiveXperts Network Monitor to monitor your servers.


Asynchronous WMI operations

Description

Example(s)

Dim bDone, numEventsInspected
Dim strComputer

Do
   strComputer = inputbox( "Please enter computername (or . for local host)", "Input" )
Loop until strComputer <> ""
CheckEventLog strComputer, "System"

Function CheckEventLog( strComputer, strLogFile )
    Dim objWMIService, objSink

    bDone              = False
    numEventsInspected = 0

    Set objWMIService = GetObject ("winmgmts:" & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
    Set objSink = CreateObject ("WbemScripting.SWbemSink","SINK_") 
    objWMIService.ExecQueryAsync objSink,"Select * from Win32_NTLogEvent where LogFile='" & strLogFile & "'"
    While Not bDone
        WScript.Sleep 1000
    Wend
End Function


' Sub sink_onCompleted used by CheckEventLog
Sub sink_onCompleted( HResult,oErr,oCtx )
    bDone=True
End Sub

' Sub sink_onObjectReady used by CheckEventLog
Sub sink_onObjectReady( e, octx )
    WScript.Echo e.SourceName
    numEventsInspected = numEventsInspected + 1
End Sub