This was the first S3 graphics chip released. Distributed by Orchid, Diamond,Genoa & Octek. Drivers below are for Windows 3.1/NT 3.51/NT 4.0. Drivers were included with Windows 95 onwards. s3.sys is the driver that is used on all Windows 32bit OS after Windows 95. Later OS will install a generic high color driver, that may be fine for what is needed if you are using this card on XP onwards.