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    AC'97 Audio WDM Driver for Windows 98SE/ME/2000/XP
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CONTENTS OF THIS DOCUMENT
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1. Installation Instructions
2. Uninstallation Instructions
3. AC'97 Sound Setup Utility
4. Driver File List
5. Driver Change List

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1. Installation Instructions
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* Install from Setup Package
1. Run Setup.exe from the extracted Setup Package
   or run self-extract execution Audio_{Version}_Multi.exe
   to start Setup process.
2. In 98/ME, Setup program will prompt you to reboot system.
   After system reboot, driver installation will complete properly.
   In 2000/XP, driver installation may complete without any system reboot.

* Install from Device Manager
1. Start Control Panel's System applet, then
   select "Device Manager" tab (in 98/ME),
   or select "Hardware" tab and click on "Device Manager" button (in 2000/XP).

(If audio driver has never been installed ...)
2. In the device list,
   double click on the "PCI Multimedia Audio Device" item
   under "Other Devices" category.
3. In the Properties dialog,
   click on "Reinstall" button.

(If audio driver has already been installed ...)
2. In the device list,
   double click on the "AC'97 Audio WDM Driver" item
   under "Sound, video and game controllers" category.
3. In the Properties dialog,
   select "Driver" tab and click on "Update Driver" button.

4. Follow Hardware Update Wizard (or Update Device Driver Wizard) prompt.
   Select Install from the specific location and specify the correct path.

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2. Uninstallation Instructions
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* Uninstall from Add/Remove Programs
(This method is recommended if driver is previously installed by Setup program.)
1. Start Add/Remove Programs from Control Panel.
2. Select "AC'97 Audio Controller" item.
3. Click on "Remove" button.

* Uninstall from Device Manager
1. Start Device Manager from Control Panel's System applet.
2. Right click on "AC'97 Audio Controller" item, then
   select "Remove" (or "Uninstall") item from the popup menu.

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3. AC'97 Sound Setup Utility
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* From Control Panel window, double chick on the "AC'97 Sound Setup" applet
  icon to launch this program.

* CODEC Power Saving Configuration
- "Power Management" tab
- "Enable Power Management" checkbox:
	to enable or disable CODEC power saving function
- "Always"/"Only in battery power mode" combobox:
	to select the active time of CODEC power saving function
- "Turn off CODEC power after (when no sound is played)" combobox:
	to set the idle time to automatically power down CODEC (PR0:ADC, PR1:DAC)
- "Enable External Amplifier Power Down":
	to further power down CODEC (PR2:Mixer, PR7:EAPD)
- [Apply] button: to apply the new settings,
- [OK] button: to apply the the new settings and exit program

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4. Driver File List
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* ALi55WDM.sys
  - is the driver binary
  - will be installed to %windir%\System32\Drivers
* ALi55CPL.cpl
  - is the AC'97 Sound Setup Utility binary
  - will be installed to %windir%\System (in 98/ME) or System32 (in 2000/XP)
* ALi55PRP.dll
  - the property page will display some AC97 codec features.
  - will be installed to %windir%\System (in 98/ME) or System32 (in 2000/XP)
* ALi*.inf
  - will be installed to %windir%\inf (in 2000/XP)
    or inf\Other (in 98/ME)    
* Readme.txt
  - this file

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5. Driver Change List
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* 7005
  - Changed the method to communicate with modem about audio/modem status while suspend or resume.
  
* 7004
  - Detect secondary aduio codec, if it exist, disable H/W SRC automatically.