Thanks for all
Now I have an temporary solution for this: Use cmd.exe (shell("cmd.exe",1)) -> DOS prompt -> easy.

I fact, this is just a small thing in my project: I am going to write and pogram that can act as: editor - to edit asm program, an assembler ... and used to simulate some simple program, such as TEST MICROCNTROLLER, KEYBOARD INTERFACE, LCD DISPLAY.... The purpose is to teach my girlfriend how to use a microcontroller.
Any idea will be appreciated