11.1 CD-ROM Drives

   . If you are using a CD-ROM drive with Windows 3.1, you should use version
     2.21  of   Microsoft   MS-DOS  CD-ROM   Extensions   (MSCDEX)  with   all
     configurations of CD-ROM drives.  If you use  version 2.20 or  later, you
     must also remove the following  setting from the [386Enh]  section of the
     SYSTEM.INI file:

      device=LANMAN10.386

     This setting  can  cause some  CD-ROM  drives to  timeout  and fail  with
     versions later than 2.20  of MSDCEX. However, if  you must use  a version
     earlier than  2.20  of  MSCDEX, the  above  setting  is required  in  the
     [386Enh] section of your SYSTEM.INI file.

   . If  a CD-ROM  drive causes  instability in  your  system or  causes your
     system to fail, you may need  to update the CD-ROM driver.  Also, the MCI
     (Media Control Interface)  driver MCICDA.DRV may  not work  properly with
     older  CD-ROM  drivers.  Contact  your  CD-ROM-drive  manufacturer  about
     obtaining an updated driver.


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