This installer file contains the EPSON Stylus Photo 875DCS printer driver files v 6.3 aE. This installer will place a folder on the desktop labeled, "Stylus Photo 875DCS v6.3aE." Open the folder and run the install icon. This file also contains the following files which are needed to use the full capabilities of the printer: Photo Starter, Memory Card and USB R/W Switcher files. Note: Your computer must have USB capabilities and use MAC OS Rom v1.2 or higher. Read your users manual for more details.