Microsoft KB Archive/139428

= Error Messages When Accessing CD-ROM Drive in Windows =

Article ID: 139428

Article Last Modified on 1/19/2007

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APPLIES TO


 * Microsoft Windows 98 Standard Edition
 * Microsoft Windows 95
 * Microsoft Windows 98 Second Edition

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This article was previously published under Q139428



SYMPTOMS
When you try to access your CD-ROM drive in Windows, you may experience one of the following symptoms:


 * You cannot run executable (.exe) files.
 * You cannot view complete directory listings.
 * You receive the error message "Device not found."



CAUSE
These issues can occur if you are using an older version of the Mscdex.exe file that is not compatible with Windows 95 or Windows 98.

When you install certain real-mode CD-ROM drivers, an older version of the Mscdex.exe file is copied to the hard disk, and the Autoexec.bat file is updated to point to this older version of the Mscdex.exe file.



RESOLUTION
Modify the Autoexec.bat file to reference the correct version of the Mscdex.exe file. To do so, follow these steps:

 Make a backup copy of the Autoexec.bat file. Use any text editor (such as Notepad) to open the Autoexec.bat file.  Modify the line containing Mscdex.exe to read

where is the drive letter on which the Windows folder is located, is the name of the folder in which Windows is installed, and are the parameters from the original line containing Mscdex.exe.

NOTE: To maintain compatibility with the installed CD-ROM driver, make sure to use all the parameters exactly as they are used in the original line.  Save and then close the Autoexec.bat file. Restart your computer.

Additional query words: exe hwcds

Keywords: kberrmsg kbfaq kbhardware kbprb KB139428

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