> [dll]load: unable to find _sane_m1200up_init > [dll]load: unable to find _sane_m1200up_exit > ...... > [dll]load: unable to find _sane_m1200up_get_select_fd > [dll]init: initializing backend 'm1200up' > In you C file, have you defined BACKEND_NAME before the include files? Is #include "../include/sane/config.h" the first include? Frank.