This self-extracting file contains the Epson Perfection 1200S TWAIN Driver v5.53A. Important: The scanner must be disconnected from computer while installing this driver. NOTE: Windows XP Users: You will get a Hardware Installation dialog box when you install the scanner. Click Continue Anyway to complete installation. Windows 2000 Users: You will get the Digital Signature Not Found dialog box during installation. Click Yes to continue installation. Learn more.