IBM ThinkPad May 3, 2002 Audio Driver V for Windows NT 4.0 Version 4.01.4035.0404 ========================================================================= What This package Does ---------------------- This package provides the audio driver for Windows NT 4.0 users. The audio driver enables or updates the audio function of the following ThinkPad computers: - ThinkPad A21e (2628,2655) - ThinkPad A22e Celeron Model - ThinkPad A30, A30p - ThinkPad T23 - ThinkPad X22, X23, X24 To determine if you should update the audio driver, refer to the "Summary of Changes" section. To update the audio driver, refer to the "Installation Instructions" section. Released Versions ----------------- Version 4.01.4026 Initial release Version 4.01.4027 Support for ThinkPad A21e and a problem fix Version 4.01.4031 Support for ThinkPad A22e Celeron Model and a problem fix Version 4.01.4031.0427 Support for ThinkPad T23, A30, A30p, X22 and a new function Version 4.01.4031.1205 Support for ThinkPad X23 and a problem fix Version 4.01.4035.0404 Support for ThinkPad X24 and a problem fix Summary of Changes ------------------ Where: Version (for example, 1.00.0000 means Version 1.00.0000) (New) New function or enhancement (Fix) Correction to existing function <4.01.4026> - (New) Support for DirectX3.0a - (New) Support for ThinkPad A21e (2628). <4.01.4027> - (Fix) Blue Screen by Suspend/Hibernation and Resume. - (New) Support for ThinkPad A21e (2655). <4.01.4031> - (Fix) System Hang by playing MIDI for long time. - (New) Support for ThinkPad A22e Celeron Model. <4.01.4031.0427> - (New) Support for ThinkPad T23. - (New) Support for ThinkPad Software Installer. - (New) Support for ThinkPad A30, A30p. - (New) Support for ThinkPad X22. <4.01.4031.1205> - (Fix) Added a sample setup.iss file for unattended installation. - (New) Support for ThinkPad X23. <4.01.4035.0404> - (Fix) Corrupted characters are displayed within the Volume Control under Norwegian environment. - (New) Support for ThinkPad X24. Installation Instructions ------------------------- First time Install 1. Start Windows NT and logon to the system as an administrator. 2. Extract the audio driver for Windows NT to the hard disk drive. 3. Click Start, then click Run. In the Run dialog window, type the path that you extracted the files to. 4. Double-click setup.exe. The startup message appears and then disappears. A Dialog box appears welcoming you to the installer. 5. Click Next, a Dialog box appears showing the progress as Setup copies the driver files to the startup disk. A dialog box appears telling you that the installation is complete. 6. Click Yes, I want to restart my computer now. 7. Click Finish. Your computer restarts and loads the new driver. To update the audio driver 1. Start Windows NT and logon to the system as an administrator. 2. Extract the audio driver for Windows NT to the hard disk drive. 3. Click Start, then click Run. In the Run dialog window, type the path that you extracted the files to. 4. Double-click setup.exe. The startup message appears and then disappears. A Dialog box appears welcoming you to the installer and telling you that a driver is already installed. 5. Click Next. A dialog box appears asking you whether you want to update or remove the existing driver. 6. Click Remove. 7. Click Next. 8. Click Yes, I want to restart my computer now. 9. Click Finish. Your computer restarts and the driver is removed. 10. Install Audio Driver as described in the First Time Install section above. Unattended Install ------------------ Run setup.exe with /n option. Uninstall --------- 1. Start Windows NT and logon to the system as an administrator. 2. Extract the audio driver for Windows NT to the hard disk drive. 3. Click Start, then click Run. In the Run dialog window, type the path that you extracted the files to. 4. Double-click setup.exe. The startup message appears and then disappears. A Dialog box appears welcoming you to the installer. 5. Click Next. A dialog box appears asking you whether you want to update or remove the existing driver. 6. Click Remove. 7. Click Next. Setup marks the driver files for deletion. Then a dialog box appears telling you that the removal is complete. 8. Click Yes, I want to restart my computer now. 9. Click Finish. Your computer restarts and deletes the driver files that were marked for deletion. Determining which version is installed -------------------------------------- 1. Click Start, point to Find, then click Files or Folders. 2. Click Name & Location. 3. In the Named: field, type cwantr0.sys. 4. In the Look in: field, specify Local Hard drives (C:,D:). 5. Click the Find Now button. If you do not find the file then the driver is not installed. 6. Right-click the file name found in the %WNT%\SYSTEM32\DRIVERS directory. Where %WNT% is the drive and directory that Windows NT was installed in. 7. Click Properties. 8. Click Version. Trademarks ---------- * IBM and ThinkPad are registered trademarks of IBM Corporation. * Windows and Windows NT are registered trademarks of Microsoft Corporation. Other company, product, and service names may be registered trademarks, trademarks or service marks of others.