Hi, The usr/include/w32api/ddk contain windows device driver related header files. So does this mean that it is possible to develop windows device drivers using CYGWIN ? Thanks Kiran -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/