Media Sound SW/32 Sound Device Install Disk V2.10B 16bit Plug 'N' Play Full Duplex Sound Card Drivers for DOS,Windows 3.1X, Windows NT, Windows 95 Drivers major CDROM drivers also included.(All previous from disk label) Windows 95/98 users MUST follow instructions in readme.w95 file! I purchased this card in '97 these files from original disk. Has worked in 98 and NT 4.0 for me. Config utility included allows for I/O settings and disable of features like CDROM controller and MPU401. Card has Crystal CS4231A-KL on large chip and smaller chip has OPTi 82c924 also has a Yamaha chip. 16 bit ISA card equip. w/ sound multiple (4) CDROM interfaces, MPU401 and game port also has Line in/out and speaker jacks and volume wheel.