Lexmark 5x00 Series Driver for Microsoft Windows 2000, and Windows NT 4.0. Driver Version 126.96.36.199. Once downloaded, double-click the file to extract the driver. Then, install the driver through the Add Printer Wizard. Please refer to the 5x00 Instructions.htm file for detailed installation instructions. For Support Information on this file visit "http://support.lexmark.com". (Note: These drivers are NOT intended for use with Windows 3.1, 3.11, 95, or 98). These drivers can be downloaded from this web site free of charge. However, there will be a fee to cover materials and handling if requested from the Technical Support Center.