Dear sir; I had written program with Keil and i dont like to give it to other but i want to give assembly to him that he can compile this assembly code to HEX. please guide me how can i converted it to assembly for compilng it to hex. As you mentioned Keil have a project.lst includes C program and assembly but i couldnt use it for compile to hex.(Do you understand me or not?) j.majd@engineer.com