Kernel-Mode Driver Framework (KMDF) version 1.11 is available as a free download from official Microsoft sources, primarily as a cumulative update for older operating systems. Microsoft Update Catalog Official Download Methods
(KMDF 1.11 included): Microsoft Download Center – WDK 8.1 kernel mode driver framework 1.11 download free
KMDF 1.11 is designed to add support for modern kernel-mode drivers to the following operating systems: Windows 7 (all editions) Windows Server 2008 R2 Windows Vista Windows Server 2008 Microsoft Support Verification of Installation To confirm if you already have KMDF 1.11 installed: Control Panel Programs and Features View Installed Updates in the left sidebar. Search for in the list. Microsoft Knowledge Base Archive Note for Developers: Kernel-Mode Driver Framework (KMDF) version 1
WDK 8.0 and 8.1 integrate only with (for WDK 8.0) or Visual Studio 2013 (for WDK 8.1). Microsoft Knowledge Base Archive Note for Developers: WDK
Happy driver coding!
: Allows for managing multiple power states for different components within a single device.