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Command-Line Switches for MSCDEX.EXE

This article was previously published under Q87165
This article describes the command-line switches for Microsoft's CD-ROMExtension, Mscdex.exe, versions 2.21, 2.22, and 2.95.

Mscdex.exe is available from CD-ROM vendors, with the MS-DOS 6 Upgrade, 6.2Upgrade, and 6.21 Upgrade, and with Windows 95/98.
Mscdex.exe is a CD-ROM "redirector." It hooks into the MS-DOS or Windowsoperating system the same way the network redirector does to obtain accessto files that are not on local hard or floppy disks. As far as MS-DOS orWindows is concerned, CD-ROM drives look just like network drives.MSCDEX splices itself in front of the network redirector and takes requestsbelonging to CD-ROM drives and passes the rest to redirectors (such asnetwork redirectors).

Command Line Switches

The following is the command line for MSCDEX.EXE:
MSCDEX.EXE: /D:x /M:n /E /V /L:x /S /K
The following table defines the MSCDEX.EXE command-line switches:
Switch                  Definition/D:<device name>        - Allows you to specify a name for the device                          driver. This name must be identical to the                          device name used in the CONFIG.SYS file./M:<n>                  - Specifies the number of sector buffers used                          to cache the path table of a CD-ROM disk.                          Typically, each drive should have a minimum                          of four to five buffers. The larger this                          number is, the less your computer will have                          to read directly from the CD-ROM drive./E                      - Tells MSCDEX.EXE to use expanded memory if                          your system is using expanded memory./V                      - Displays information on memory usage                          when you boot your PC./L:<drive letter>       - Allows you to specify the letter you want                          to assign to the first CD-ROM drive./S                      - Allows the CD-ROM to be shared on MS-NET                          based systems./K                      - Tells MSCDEX.EXE to use any KANJI (Japanese)                          file structures, if present, rather than the                          default of alphanumeric file structures.				
5.00 5.00a 6.00 6.20 6.21 6.22 3.00 3.00a 3.10 3.11 share cd rom device parameters delimiters dos win95x msdos

Article ID: 87165 - Last Review: 09/24/2011 02:10:00 - Revision: 3.0

  • Microsoft Windows 3.0 Standard Edition
  • Microsoft Windows 95
  • kbinfo tp_cs KB87165