readme.txt Driver File Contents (audio_231b.exe)

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  ³              Copyright (c) 1998-2002 VIA Technologies Inc.             ³
  ³                                                                        ³
  ³               VIA AC'97 PCI Audio Device Driver ReadMe.Txt             ³     
  ³                                  for                                   ³
  ³                   DOS/Win9x/Win40/Win2000/WinME/WinXP                  ³
  ³                                                                        ³
  ³ * This readme file is used to provide the information for installation ³
  ³   and Uninstall "VIA AC'97 PCI Audio Device" drivers.                  ³
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                                CONTENTS
                        ***********************
1)  Recommended Hardware
2)  System Requirements
3)  Package Version Identification
4)  Distribution Package Contents
5)  DOS 
6)  Windows 95/98 (VxD) Driver
7)  Windows 98 SE (WDM) Driver
8)  Windows 2000/XP Driver
9)  Windows ME Driver
10) Windows NT 4.0 Driver
11) OS/2 Driver
                        ***********************

1) Recommended Hardware
   Minimum system specifications of Pentinum II 266 MHz CPU, or Pentinum 200 MHz
   CPU, or AMD K6-2 200MHz and 32 MB Ram is recommended to ensure sound quality.


2) System Requirements

   * This package can be installed for the Audio function of the VIA 
     VT82C686A/686B/VT8231 southbridge chips.

   * The "VIA AC97 PCI Audio Device" driver package supports drivers on
     the following Operation Systems.

        Operation System                Version             
     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
        DOS*                            6.22
        Windows 95                      4.00.950 or above
        Windows 98                      4.10.1998 or above
	Windows NT 3.51
        Windows NT 4.0                  Service Pack 4 ,build 1381
        Windows 2000                    RTM or above
	Windows Me			RC1 or above
	OS/2

        * Note : The EMM386.EXE above the DOS 6.22 handles the NMI routine
                 unproperly when DOS program is used the NMI ISR also. 

3) Package Version Identification

    1. In this package, there is a TXT file named VIAUDIO.REV. You can see
       the release version in this file. ex. If you can see 2.31b
       in this file, then the Setup program will show 2.31b in driver installation
       screen.

    2. This package release version is 2.31b.

    3. The driver versions included in this package are:

        Operation System                Version             
     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
        DOS*                            1.11
        Windows 9x(VXD)                 4.05.00.1130     
        Windows 98SE (WDM)              5.12.01.3731
	Windows NT 3.51			4.00.Beta
        Windows NT 4.0                  4.03.00.3140
        Windows 2000/XP(WDM)            5.12.01.3731
        Windows ME(WDM)                 5.12.01.3731
	OS/2				1.11

4) Distribution Package Contents  
     If you have received this driver version on a floppy disk, it is compressed 
     by an auto uncompressing format. You must uncompress it first before executing 
     the setup program. 
 
   The uncompressed package includes the following files listed below : 

FLOPPY :
³
³   _INST32I.EX_                Setup Program
³   _ISDEL.EXE                  InstallShield5 related files below
³   _SETUP.DLL
³   _SYS1.CAB
³   _SYS1.HDR
³   _USER1.CAB
³   _USER1.HDR
³   DATA.TAG
³   DATA1.CAB
³   DATA1.HDR
³   LANG.DAT
³   LAYOUT.BIN
³   OS.DAT
³   SETUP.BMP
³   SETUP.EXE
³   SETUP.INI
³   SETUP.INS
³   SETUP.ISS
³   SETUP.LID
³   WDM.BAT
³
ÃÄÄÄDOS                         
³       INSTALL.EXE             VIA Sound Blaster Pro Compatible setup program
³       VIAUDIO.COM             VIA Sound Blaster Pro Compatible TSR program
³       DOS4GW.EXE              Enter Protect mode Watcom DOS4GW program
³
ÃÄÄÄWIN9X 
³       VIAUDIO.INF             VIA AC97 PCI Audio Device installation file
³       VIAUDIO.VXD             VIA AC97 PCI Audio Device VxD driver
³       VIAWAVE.DRV             VIA AC97 PCI Audio Device Wave driver
³       VIAFM.DRV               VIA AC97 PCI Audio Device FM driver
³       VIAMIDE.DRV             VIA AC97 PCI Audio Device MPU401 driver
³
ÃÄÄÄWIN98SE 
³       VIAUDIO.INF             VIA AC97 PCI Audio Device installation file (Note : this is same as the one in the Win2000 directory.)
³       VIAUDIO.SYS             VIA AC97 PCI Audio Deivce WDM driver (Note : this is the same as the one in the Win2000 directory.)
³       VIAUDIO.CAT             VIA AC97 MS Digital Signature Catalog file
³ 
ÃÄÄÄWIN2000 
³       VIAUDIO.INF             VIA AC97 PCI Audio Device installation file.
³       VIAUDIO.SYS             VIA AC97 PCI Audio Deivce WDM driver.
³       VIAUDIO.CAT             VIA AC97 MS Digital Signature Catalog file
³ 
ÃÄÄÄWINXP 
³       VIAUDIO.INF             VIA AC97 PCI Audio Device installation file.
³       VIAUDIO.SYS             VIA AC97 PCI Audio Deivce WDM driver.
³       VIAUDIO.CAT             VIA AC97 MS Digital Signature Catalog file
³
ÃÄÄÄWINME 
³       VIAUDIO.INF             VIA AC'97 Audio Device installation file. (Note : this is the same as the one in the Win2000 directory.)
³       VIAUDIO.SYS             VIA AC'97 Audio Deivce WDM driver. (Note: this is different than the one in the Win2000 directory for MS DRM requirement.)
³       VIAUDIO.CAT             VIA AC'97 Audio Deivce Digital Signed file 
³        
ÃÄÄÄWINNT40 
³       OEMSETUP.INF            VIA AC97 PCI Audio Device installation file
³       VIAUDIO.SYS             VIA AC97 PCI Audio Deivce kernel mode driver 
³       VIAUDIO.DLL             VIA AC97 PCI Audio Device user mode driver
³
ÃÄÄÄWINNT351                         
³       OEMSETUP.INF		VIA AC97 PCI Audio Device installation file 
³       VIAUDIO.SYS		VIA AC97 PCI Audio Deivce kernel mode driver
³       VIAUDIO.DLL		VIA AC97 PCI Audio Device user mode driver
³
ÀÄÄÄOS2                         
       AUDFILES.SCR            This file tells  MINSTALL which files need to 
                               be copied, and into which subdirectories those files
                               should be copied.
       AUDHELP.HLP             This file gives information to the user when the user
                               installs the audio adapter.
       CARDINFO.DLL            This file contains information relevant to the audio 
                               adapter. MMPM/2 uses this information to interface with
                               the adapter.
       CONTROL.SCR             This file tells MINSTALL which subsystems and
                               devices that the user can install.
       GENIN.DLL               This file is the generic installation program that installs 
                               your audio adapter.
       GENINMRI.DLL            Contains the text used be GENIN.DLL.
       VIAUDD.SYS              VIA Audio Physical Device Driver.

5)  DOS Sound
  
(a) General Information:

DOS sound can be divided into two classes: 
      1) Waveform sound,such as a Gun shot, knock sound etc. The "Sound Blaster Pro Compatible sound device" hardware is build-in on VIA
      VT82C686A/686B/VT8231 south bridge to support DOS Waveform sound and
      2) Music sound, which is in MIDI format such as background music. VIA supports a software synthesizer to play MIDI format.   
      

(b) In pure DOS environment or "Restart to MS-DOS mode" from Win 9X:
      How to play a DOS game with both Waveform and MIDI sound.
      * For Waveform sound: first enable the Sound Blaster setting in the
        BIOS CMOS setup firstly. Please follow these instructions to enable
        the setting in the BIOS :    
        INTEGRATED PERIPHERALS -> Onboard Legacy Audio (Enabled)
        -> Sound Blaster (Disable -> Enabled)
      * For MIDI music sound: Because the chipset doesn't support MIDI hardware
        synthesizer the user needs to install VIA software synthesizer TSR utility.
        This utility can translate MIDI format to Waveform format.
        To install this utility, please follow this procedure:        
        i)   Run "install.exe" in "\DOS" directory.
        ii)  The program will copy the relative files into the directory
             which you assigned, the default is "C:\VIAUDIO\VIAUDIO.COM".
             Then the program will insert the new line
             "C:\VIAUDIO\VIAUDIO.COM" into the AUTOEXEC.BAT and copy the
             original AUTOEXEC.BAT to AUTOEXEC.VIA.
        iii) Reboot the system when the installation is completed.
        iv)  You can uninstall this TSR utility by deleting the new line from the
             AUTOEXEC.BAT and deleting the file C:\VIAUDIO\VIAUDIO.COM
  
(c) In Windows MS-DOS prompt environment:

* If you install the VxD audio driver: first enable the Sound Blaster setting in the
        BIOS CMOS setup firstly. Please follow these instructions to enable
        the setting in the BIOS :    
        INTEGRATED PERIPHERALS -> Onboard Legacy Audio (Enabled)
        -> Sound Blaster (Disable -> Enabled)
         VxD audio driver will trap the I/O port of the SB Pro compitable device
        to simulate game program I/O access. VIA also supports FM synthesizer
        driver to play DOS game's MIDI music data.
      
* If you install the WDM audio driver:
        i)  For Waveform sound: In WDM architecture, Microsoft provides
            a SB Pro enumeration driver, named sbenum.sys, to simulate
            SBPro behavior for DOS games to play Waveform sound.
        ii) For MIDI music sound: In WDM architecture, Microsoft provides
            a WDM kernal driver named swmidi.sys to play MIDI format music.
        Users should have the setting in DOS games. Wave player is SBPro
        and Music player is General MIDI.

6)  Windows 95/98 (VxD) Driver
    *************************
    ** Driver Installation **
    *************************
    
a) Automatic Installation
       For Windows 95 and 98, Setup program will automatically install VxD driver.
       Uncompress the zip folder and Type D:> SETUP.EXE (where D equals the location of 
       the setup file) in the run command prompt or double click the setup.exe file. 
       Select "Install driver" option. After the system reboots, the driver will be completely installed.

b) Manual Installation
        Under Device Manager, the "PCI Audio Multimedia Device" will be displayed 
        if the "VIA AC97 PCI Audio Device" is detected by the PCI enumerator.

        Set the source destination directory to the "\WIN9X" with the "VIA AC97
        PCI Audio Device" installation file, VIAUDIO.INF.

        After the selection, the "VIA AC97 PCI Audio Device" and its subsystems
        will be installed automatically. 
       
       
    Windows 98 (WDM) Driver
    *************************
    ** Driver Installation **
    ************************* 

For win 98, if you want to install WDM driver instead of VxD, type 

                D:> SETUP.EXE -WDM (where D equals the location of the setup file)

       in the run command promopt and then the WDM driver will be installed.        
          



    ***************************
    ** Driver Uninstallation **
    ***************************
    a) Type 
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command prompt or double click the setup.exe file. Select "Uninstall driver". After the system 
       reboots, the driver will be removed. 
       

    
7)  Windows 98 SE (WDM) Driver
    *************************
    ** Driver Installation **   
    *************************
    
a) Automatic Installation
       For Windows 98 SE, the Setup program will automatically install the WDM driver.
       Uncompress the zip folder and Type
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command prompt or double click the setup.exe file. Select "Install". 
       After the system reboots, the driver will be installed completely.

b) Manual Installation
       Under Device Manager, "PCI Audio Multimedia Device" will be displayed if the "VIA AC97 PCI
       Audio Device" is detected by the PCI enumerator.

       Set the source destination directory to "\WIN98" where the "VIA AC97
       PCI Audio Device" installation file, VIAUDIO.INF, for the Win98 is located.

       After the selection, the "VIA AC97 PCI Audio Device" and its subsystems
       will be installed automatically. 

    ***************************
    ** Driver Uninstallation **    
    ***************************
    a) Type 
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command promopt or double click the setup.exe file. Select "Remove". After the system reboots, 
       the driver will be removed completely.

    b) OR you can remove the "VIA AC97 PCI Audio Device" from the device manager.
       
       If you want to totally remove this driver, you should delete the relative
       "VIAUDIO.INF" under the "\WINDOWS\INF" or "WINDOWS\INF\OTHER" directory.
       At the same time, you should remove the driver file under the 
       "WINDOWS\SYSTEM32\VIAUDIO.SYS". Then the driver will not install again
       after the next boot.

    *************************************************
    ** Sound Blaster Compatible DOS Game Supported **
    *************************************************
    You can play Sound Blaster compatible DOS games with GENERAL MIDI 
    music format ONLY in the Windows DOS box. You don't need to enable the 
    "Sound  Blaster" setting in the BIOS. The Sound Blaster emulation is 
    done by Microsoft and OPL3 music format is not supported under the 
    Microsoft WDM driver archetecture. 

    You should change the MUSIC setting in your Sound Blaster compatible 
    DOS game from FM MIDI to GENERAL MIDI. Otherwise, there will be no music
    heard when the Sound Blaster compatible game is played.


8) Windows 2000/XP Driver
    *************************
    ** Driver Installation **   
    *************************

a) Automatic Installation

Uncompress the zip folder and Type 
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command promopt or double click the setup.exe file. Select "Install". 
       After the system reboots, the driver will be installed completely.

b) Manual Installation

       Under Device Manager, "PCI Audio Multimedia Device" will be displayed if the "VIA AC97 PCI
       Audio Device" is detected by the PCI enumerator.

       Set the source destination directory to the "\WIN2000" where the "VIA AC97
       PCI Audio Device" installation file, VIAUDIO.INF, for the Win2000 is 
       located.

       After the selection, the "VIA AC97 PCI Audio Device" will be installed
       successfully. 

    ***************************
    ** Driver Uninstallation **    
    ***************************
    a) Type 
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command prompt or double click the setup.exe file. Select "Remove". After the system reboots, 
       the driver will be removed completely.

    b) OR you can remove the "VIA AC97 PCI Audio Device" from the device manager.

       If you want to totally remove this driver, you should delete the relative
       "OEMx.INF" under the "\WINDOWS\INF" directory. At the same time, you 
       should remove the driver file under the "WINDOWS\SYSTEM32\VIAUDIO.SYS". 
       Then the driver will not install again after the next boot.

NOTE: Please note, under Win2000/WinXP, the .cat file can't be installed from the setup program (option a). If you want to check the "Digital Signed file" from Micrsoft you must install the driver using option b - through the Device Manager.

9) Windows ME Driver
    *************************
    ** Driver Installation **   
    *************************

a) Automatic Installation

      Uncompress the zip folder and Type 
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command prompt or double click the setup.exe file. Select "Install".
       After the system reboots, the driver will be installed completely.

b) Manual Installation

       Under device manager, "PCI Audio Multimedia Device" will be displayed if the "VIA AC'97 
       Audio Device" is detected by the PCI enumerator.

       Set the source destination directory to the "\WINME" where the "VIA AC'97
       Audio Device" installation file, VIAUDIO.INF, for the Win2000 is 
       located.

       After the selection, the "VIA AC'97 Audio Device" will be installed
       successfully. 

    ***************************
    ** Driver Uninstallation **    
    ***************************
    a) Type 
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command prompt or double click the setup.exe file.
       Select "Remove". After the system reboots, the driver will be removed 
       completely.

    b) OR you could remove the "VIA AC'97 Audio Device" from the device manager.

       If you want to totally remove this driver, you should delete the relative
       "VIAUDIO.INF" under the "\WINDOWS\INF" or "WINDOWS\INF\OTHER" directory.
       At the same time, you should remove the driver file under the 
       "WINDOWS\SYSTEM32\VIAUDIO.SYS". Then the driver will not install again
       after the next boot.

10) Windows NT 4.0 Driver
    *************************
    ** Driver Installation **   
    *************************
    
a) Automatic installation

       Uncompress the zip folder and Type 
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command prompt or double click the setup.exe file. Select "Install".
       After the system reboots, the driver will be installed completely.

b) Manual Installation


       a) Select the "Multimedia" icon from the Control Pannel to install 
          the driver.

       b) When the "Multimedia Properties" is displayed, select the "Devices"
          sheet then click the "Add" button. 

       c) When the "Add" page is displayed, select the "Unlisted or Upgraded 
          Driver" from the "List of Drivers". Then click "OK" button.

       d) Type the source volumn and "\WINNT40" directory where the driver 
          located. Then click "OK" button.

       e) The "VIA AC97 PCI Audio Device" will be displayed on the 
          "Add Unlisted on Updated Driver" page. Select "OK" then the driver
          will be installed.

NOTE: If you want to use a Joystick Device then follow this procedure:
 
       f) Select "Joystick Devices" in Multimedia Properties" then click
          "OK".
       
       g) Select the joystick from the "List of Drivers" or from the "Unlisted
          or Upgraded Driver" which is supported from Joystick manufacturers.
    
    After the selection, the "VIA AC97 PCI Audio Device" and its subsystems
    will be installed automatically. 
    
    ***************************
    ** Driver Uninstallation **    
    ***************************
    Follow the instructions listed below to uninstall the driver :

    a) Type 
                D:> SETUP.EXE (where D equals the location of the setup file)

       in the run command prompt or double click the setup.exe file. Select "Remove".
       After the system reboots, the driver will be removed completely.

    b) OR 

       a) Select the "Multimedia" icon from the Control Pannel to uninstall 
          this driver.

       b) When the "Multimedia Properties" is displayed, select the "Devices"
          sheet then click the "Remove" button. 

       c) When the "Remove" page is displayed, click the "OK" button then
          the driver will be removed.                                    

11) OS/2 Driver
    *************************
    ** Driver Installation **   
    *************************
    (a) Place the installation diskette in drive A.

    (b) Type MINSTALL on the OS/2 command line.

    (c) Change the source drive to A.

    (d)	Select the adpater, then press "OK"

    (e) If an error occurs, check the MINSTALL.LOG file in the \MMOS2\INSTALL 
        subdirectory for an error message.


Download Driver Pack

How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

  • Expand the archive file (if the download file is in zip or rar format).

  • If the expanded file has an .exe extension, double click it and follow the installation instructions.

  • Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

  • Find the device and model you want to update in the device list.

  • Double-click on it to open the Properties dialog box.

  • From the Properties dialog box, select the Driver tab.

  • Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.

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