Abstract
This chapter examines the various event types available, how they are organized, and how to take full advantage of this technology from the scripting world. This chapter examines Windows management instrumentation (WMI) events by explaining the different event types available from WMI and the type of system classes they use. Beside the WMI scripting API used in a script managing WMI events, WMI events can be received only by formulating the right WMI query language (WQL) event query. Without being able to formulate a WQL event query, it is impossible to work with the WMI events. This chapter explores that the event providers and the classes that they implement have an influence at three levels: the way the WQL query is formulated, the retrieved properties from the event, and the instance subject to the event.
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