Calling an c main() function or exe from a cpp

[magdalenaservente]

Hi, I'm quite new in Borland C++. I have a project group (several cpp files) and I'd like to incorporate some old c files I've got. So my question is if there's some way to call the main() from the c files directly from a cpp file? or to call the compiled c exe with the correct parameters also from within the cpp file?

Please help me, I'm really at a complete loss

Thanks in advance,
Magdalena