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This Additional Information field contains the following sections:
I. Summary of changes
II. Installation instructions
III. Determining which version is installed

I. Summary of changes
version 5.018

• (New) Support for DirectX 7.
• (New) Support for ThinkPad X20.
  

version 5018

• (New) Support for Windows Me.
• (New) Support for ThinkPad X21.
  

version PW5018

• (New) Support for ThinkPad TransNote.
• (Fix) Changed initial volume setting for microphone to prevent howling.

II. Installation instructions
NOTE: To determine if you should update the audio driver, refer to the Summary of Changes section.

1. Start Windows.
2. Extract this package onto the hard disk drive.
3. Click Start, select Settings, then click Control Panel.
4. Double-click the System Icon.
5. Click the Device Manager tab.
6. If you find "Crystal Sound Fusion(TM) CS4281 WDM Audio", then the audio driver has already been installed.
   If you find "PCI Multimedia Audio Device" under the Other Devices, then click the PCI Multimedia Audio Device to select it and click the Properties button.
7. Click the Driver tab and then the Update Driver button.
8. Click Next twice in the Device Driver Update Wizard Window.
9. Specify the location of the Disk by the path name in the step 2 and click Next. If you are asked, specify the location of the Disk in "Copy files from:" list and click OK. The file copy starts.
10. After the installation of "Crystal SoundFusion(TM) CS4281 WDM Audio", click Finish. The system will detect New Hardware.

III. Determining which version is installed

1. Click Start, select Settings, then click Control Panel.
2. Double-click the System icon.
3. Click the Device Manager tab.
4. Click the Sound, video and game controller section.
5. Select Crystal Sound Fusion(TM) CS4281 WDM Audio and click the Properties button.
6. Click the Driver tab.
7. Click the Driver File Details button.
8. Find and click CWRWDM.SYS.
9. Driver date shows the driver version as follows:
   

   Driver date	Version
   5-15-2000	5.018
   5-30-2000	5018
   9-11-2000	PW5018