This is the driver and Vistascan software console for the Umax Astra 3400 Scanner. It works for Win98 and Win98(SE). It may work for other OS's as well, not sure because I only used it with Win98 and it works great. This is one that's hard to find and now Umax is charging up to $34.00 to buy the driver CD from them. They no longer offer driver downloads from their websites. Enjoy!