Available in this download is the current modem driver for 3Com modems bought before January 1996, operating under Windows 95/NT 4.0. Copy this file onto a blank floppy disk. Remove all Sportster modems in Control Panel/Modems. Shut down and restart your computer. When prompted, select Change or Have Disk and point it to the floppy drive. Select the appropriate modem model and finish your modem installation.