This article provides an overview of Windows Management Instrumentation, a technology that exposes a wide variety of system and device information through a standard API. With WMI, management information is exposed by following the object oriented structure outlined in the Common Information Model (CIM), which relies on inheritance for reuse and standardization of object classes that represent system devices. This article briefly describes querying WMI for information using a query language much like SQL called Windows Management Instrumentation Query Language (WQL), existing system classes, handling system events, and security in WMI.
MSDN Magazine May 2000
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