This driver supports all ALC series audio chipsets from ALC101 up to ALC861. It is used as onboard sound on many motherboards. Chips covered include ALC101 /201/ 202/ 203/ 250/ 650/ 653/ 655/ 658/ 861. The package includes: Driver/Application Setup Program; RtlRack for Win98/Me/2000/XP and AvRack for Win95/NT4; Realtek Sound Effect Manager. Windows 98Gold/98se/Me/2000/XP/2003(32/64 bits) for Driver only. For Windows 98 SE, DirectX(R)8 is required to enable advanced features. This is a general audio Realtek driver and may not offer the customizations made by your system/motherboard manufacturer. To be sure you obtain the full features/customizations provided in your original audio product, please download the latest drivers from your system/motherboard manufacturer’s website.