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c#wmiwmi-query

What is ISA in EventQuery?

Say I have a code:

public void StartThreadWatch()
{
    EventQuery query = new EventQuery
    ("SELECT * FROM _InstanceCreationEvent WITHIN 1 " +
     "WHERE TargetInstance ISA 'Win32_Process'";
     ManagementEventWatcher watcher =
        new ManagementEventWatch(query);
      watch.EventArrived += EventArrived;
      watch.Start();
 }

I don't know what is 'ISA' in the query...

Solution

  • ISA is an operator of the WQL language used to query the subclasses of a specified WMI class.

    For more info check these msdn links