Microsoft® Windows® Scripting with WMI: Self-Paced Learning Guide

82 Part II: WMI Queries and Events

Using __Class

You can limit the amount of information returned based on the __Class property. In reality,

__Class is not really a property; it is more of a pseudo property. __Class is used to refer to the

class of the WMI object. In the data returned from a WMI query, you can use this well-known

identifier in the Where clause to filter out objects that might be derived from a particular class.

Using ISA

No, I am not talking about Microsoft ISA (Internet Security and Acceleration) Server. In WMI,

there is a command called ISA. The ISA operator (it does not need to be capitalized) can be

used with data queries, schema queries, and event queries. In all three types of queries, if ISA is

needed, it is found ...