Good Afternoon Hope somebody can help me with this problem. My PC is an intel based quadcore running XP Home Edition. I got a present of a 2nd hand HP Laser 1200 series printer that came with no installation cd. Whilst trying to connect it to my PC via a usb port the following message appeared: " Dot4usb.sys file missing. Load your XP installation disk" I searched my XP installation an cannot locate this file. What is this file needed for and any idea where it can be downloaded from. Any help greatly appreciated.