Windows Driver Model

In computing WDM stands for Windows Driver Model. It provides a framework for device drivers[?] that operate under Microsoft Windows 98/Me/Xp/2k and Server2003. WDM drivers are layered in a complex heirarchy and communicate with each other via IO Request Packets IRPs.

WDM drivers usally support at least the follwing:

• Power Management
• Plug & Play
• Windows Management Instrumentation