title: Libusb-win32,DDK,"make.cmd all" ERROR: "Invalid WinDDK Directory C:\WinDDK\7600.16385.1\"
body: <p>Thanks a lot for my question,
  When i compiled libusb-win32,i built ddk envirment,i met "Invalid WinDDK Directory  C:\WinDDK\7600.16385.1\"
  but this document existed,
  <a href="https://i.stack.imgur.com/HcVR0.png" rel="nofollow noreferrer">enter image description here</a></p>
  
  <p>Help </p>