I compiled my qBasic program (Microsoft Basic 7.1) with a C-language import library. When I run my qBasic program, I expect my program should invoke the dll automatically. But it didn't do that it only showed: "The system can not find the file PCSHLL." Note: The name of dll file is pcshll.dll. The question in general is: How do I make my program work with a DLL? Compilation is successful. At run time, my program is just no able to run. Any idea, gurus?