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. (Executable file)
ftp://152.104.238.19/pc/audio/WDM_A400.exe
Vista Driver (32/64 bits) Driver only (ZIP file) ftp://202.65.194.212/pc/audio/6241_Vista_APO.zip

Realtek Media Player(RtlRack) ftp://209.216.61.149/pc/audio/AP_A400.exe