title: Where are the Windows Driver Kit files installed?
body: <p>I've installed the <a href="http://msdn.microsoft.com/en-us/windows/hardware/gg487428.aspx">Windows Driver Kit</a> but can't find the source files anywhere. The install directory is given as Program Files (x86)\windows Kits\8.0, but I can't find anything there. Where are these installed to? </p>
  
  <p>I'm specifically looking for the sample files described <a href="http://code.msdn.microsoft.com/windowsapps/Proximity-Sample-88129731#content">in this article about simulating proximity features</a>. </p>