http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&lang=en&dlc=en&product=58394&docname=bps05342#N378

If you have a new XP machine (SP2 or later) the driver is part of windows. You would need to remove any old drivers before connecting the scanner while your computer is running - it will automatically install. Ive done it, Twice