Below is the code I am trying to use in a console application, each time I
run it I get an Management error Illegal Class error.  I have traced the
error to the \"Win32_Process\" line, apparently the wmi path is incorrect.
Tried to run the app on both xp and vista with the same error.  Could
someone suggest how I might correct this wmi path variable???

Thanks

Henry

+++++++++++++++++++++++++++++++++++++++++++++++++++++

public static void WriteToEventLog()
       {
           WqlEventQuery DemoQuery = new
WqlEventQuery("_InstanceCreationEvent", new TimeSpan(0, 0, 1),
"TargetInstance isa \"Win32_Process\" ");

           ManagementEventWatcher DemoWatcher = new
ManagementEventWatcher();
           DemoWatcher.Query = DemoQuery;
           DemoWatcher.Options.Timeout = new TimeSpan(0, 0, 30);

           Console.WriteLine("Open an application to trigger an Event.");

           ManagementBaseObject e = DemoWatcher.WaitForNextEvent();

           EventLog DemoLog = new EventLog("Chap10Demo");
           DemoLog.Source = "Chap10Demo";
           String EventName =
((ManagementBaseObject)e["TargetInstance"])["Name"].ToString();
           Console.WriteLine(EventName);
           DemoLog.WriteEntry(EventName, EventLogEntryType.Information);

           DemoWatcher.Stop();
       }

+++++++++++++++++++++++++++++++Error follows

Open an application to trigger an Event.

Unhandled Exception: System.Management.ManagementException: Invalid class
  at
System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStat
us errorCode)
  at System.Management.ManagementEventWatcher.WaitForNextEvent()
  at ManagementEvents1.Program.WriteToEventLog() in
I:\Projects\ManagementEvent
s1\ManagementEvents1\Program.cs:line 29
  at ManagementEvents1.Program.Main(String[] args) in
I:\Projects\ManagementEve
nts1\ManagementEvents1\Program.cs:line 14
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