This self-extracting file contains the Epson Stylus CX8400 EPSON Scan Utility and TWAIN Driver v3.20A for Windows 98SE, Me, XP, XP 64-bit Edition, 2000 and Vista 32-bit and 64-bit Editions. This file extracts to your hard drive and is placed in a folder that begins with c:\epson\epson12347... 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.