This file contains the Epson GT-20000 ISIS Scanner Driver v1.6 for Windows XP, XP 64-bit Edition, 2000 and Vista 32-bit and 64-bit Editions. Note: This driver requires an ISIS compatible scanning application. The EPSON Scan Utility is not included with this driver. Please do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games. Note: Try to set a system restore point before installing a device driver. It will help you restore system if installed driver not complete.