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Windows® Internals, Sixth Edition, Part 2 by David A. Solomon Mark E. Russinovich and Alex Ionescu

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The Plug and Play (PnP) Manager

The PnP manager is the primary component involved in supporting the ability of Windows to recognize and adapt to changing hardware configurations. A user doesn’t need to understand the intricacies of hardware or manual configuration to install and remove devices. For example, it’s the PnP manager that enables a running Windows laptop that is placed on a docking station to automatically detect additional devices located in the docking station and make them available to the user.

Plug and Play support requires cooperation at the hardware, device driver, and operating system levels. Industry standards for the enumeration and identification of devices attached to buses are the foundation of Windows Plug and Play support. ...

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