Hello and thanks for reply. By LPT1 I mean paraellel port. I used this for years on my old laptop. I have switched bios to bidirectional, It must be a Windows driver because I have installed a new system and it still worked.
There are drivers for USB /floppy.
I'm not sure when they started putting Service Tags on Dell machines but if yours has one, input it at their website for precise details of drivers for that machine.