Controling external ports (lpt,com)

Hi

I want to write a program with which I can controle different electrical
components (max 12 volts) by working through the lpt port. I want to build a
small model house and controle its lights, opening and closing it's curtains
etc.

I would appreciate any help.
Thanx
    Rico     mar...@iafrica.com or ja...@hotmail.com