One small question here. There is an Info output I do not quite understand. What does it really mean? Seems to be a warning sign. Regards, Xiaofan System: Windows XP, GCC 3.2.3 from MingW and libusb 0.1.10.1. C:\Myprog\fsusb-0.1.11>make gcc -Wall -D_GNU_SOURCE -Ic:\Progra~1\libusb/include -c -o rjlhex.o rjlhex.c gcc -Wall -D_GNU_SOURCE -Ic:\Progra~1\libusb/include -c -o getline.o getline.c gcc -Wall -D_GNU_SOURCE -Ic:\Progra~1\libusb/include -o fsusb main.o fsusb.o rjl hex.o memimg.o getline.o -Lc:\Progra~1\libusb/lib/gcc -lusb Info: resolving _usb_busses by linking to __imp__usb_busses (auto-import) -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist