I am attempting to build this example. However I am getting the error error MSB8020: The builds tools for WindowsApplicationForDrivers8.1 (Platform Toolset = 'WindowsApplicationForDrivers8.1') cannot be found. To build using the WindowsApplicationForDrivers8.1 build tools, either click the Project menu or right-click the solution, and then select "Update VC++ Projects...". Install WindowsApplicationForDrivers8.1 to build using the WindowsApplicationForDrivers8.1 build tools. I have already installed WDK 8.1 .exe andwhen I right click on the solution I cant find any thing that states "Update VC++ Projects" Any suggestions on how I may resolve this issue and build it. ? I am running Windows 7 and VS2012 Pro.