Medium Changer Class Driver

The Medium Changer Class Driver component implements the functions that are required by all medium changer drivers, which includes saving the changer minidriver entry points, creating a device object for the changer device, and handling Plug and Play requests.

When a device control request is received, this component calls the appropriate minidriver routine to process the request.

This component also handles Windows Management Instrumentation (WMI) requests.

This component contains a dynamic-link library (DLL) that is loaded when the first changer minidriver is installed. A changer minidriver is installed by Plug and Play when a changer device is detected.


There are no services associated with this component.

Associated Components

No other components interact with this component.


There are no configurable settings for this component.

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