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Understanding MSCDEX.EXE

☞ MSCDEX.EXE is the Microsoft CD-ROM Extensions software.
● Your CD-ROM utilitizes its drivers to allow it to communicate with your computer.
● In much the same way, MSCDEX patches your CD-ROM into your operating system (I.E. DOS)
● Following is a brief description of the command line switches for MSCDEX.EXE and their usage:
• /D: (device name) Specifies the device name of the CD-ROM device. This name must be the same as that on your driver statement. (Ex. /D:MSCD000)
• /L: (drive letter) Specifies for MSCDEX the drive letter to start assigning the CD-ROM discs. (Ex. /L:M would set the CD-ROM as the M drive)
• /M:n Specifies the number of cache buffers for MSCDEX to allocate. (Ex. /M:20)
• /E Tells MSCDEX to use EMS (Expanded) memory for the cache buffers. If EMS is available, this can save lots of RAM.
• /V Provides memory usage statistics on how much memory is used by buffers, memory resident code, and resident data.
• /K Tells MSCDEX to use Kanji file structures if present.
• /S Tells MSCDEX to patch DOS to allow sharing of CD-ROM drives on MS-NET based networks.

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Last modified: November 7, 2011

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