Windows Driver Framework Extensions (Wdfkd.dll)
Extension commands that are useful for debugging drivers built with the Kernel-Mode Driver Framework (KMDF) or version 2 of the User-Mode Driver Framework (UMDF 2) are implemented in Wdfkd.dll.
These extensions can be used on Microsoft Windows XP and later operating systems. Some extensions have additional restrictions; these restrictions are noted on the individual reference pages.
For more information about how to use these extensions, see Kernel-Mode Driver Framework Debugging.