This card is not to be used with Pocket PC 2003. Any advertising to the contrary is misleading (if not outright lie). I learned (as many others) that "Windows CE 3.0 or later" does not mean compatible with Pocket PC 2003. Linksys does not have a driver for Pocket PC 2003 and does not have a schedule for releasing one. The beta driver (available) is a far cry from what a driver should be. If you are running Pocket PC 2003 get another card if you want to use it right away.Mirek Buzga.