1.This driver package will allow the Lexmark Universal Print Driver to co-exist with previous/latest versions of Lexmark UPD. 2.If you are using a private print driver, this print queue will be able to co-exist with your private print driver without loosing the specific fixes. For detailed information about new changes for this release , please refer to Technical White Paper under Universal Print Driver page or the Release Notes section. Microsoft Certified Windows Vista, Server 2008, Windows 7, Windows 8, Windows 8.1 and Windows 10 32 bit PCL5e Emulation Universal system driver. Microsoft Certified Windows Vista, Server 2008, Windows 7, Server 2008 R2, Windows 8, Server 2012, Windows 8.1, Windows Server 2012 R2, Windows 10, Windows Server 2016 and Windows Server 2019 64-bit PCL5e Emulation Universal system driver.