First, you have the name wrong. Second, if it's not there, Define it yourself: #define LOAD_IGNORE_CODE_AUTHZ_LEVEL 0x00000010 -- 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/