EDITED VERSION: I missed the discussion point below at first, apologies Carlosdl.
You need additional hardware to do this. You cannot just configure a serial port for parallel communication or vice versa. AFAIK!!
If you buy a converter (search for one on google) then you can use a parallel printer on a serial port or vice versa, using printers as an example of course.
I could just be oversimplifying this though.