Parallel to usb adapter

Hello I need help for pins assignment of the above mention. My computer parallel port is not working for some reason unknown I have not use this port since I bought the computer.I would like to have ago on DIY,this said adapter is not available in my area. I could get the parallel and usb connectors,so if someone can give me the wiring connection of the pins from the parallel connector to the usb plug will be much appreciate. If any good suggestion to overcome this problem are welcome. Thanks