DOS Commands and Settings Information

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To Access the CD-Rom in Dosmode you have to set the options mentioned below.

The Config.sys file contains

device=c:\directory\sbide.sys /d:mscd001 /p:1F0,14 /p:170,15

lastdrive=z

or

devicehigh=c:\cdrom\gscdrom.sys /d:mscd000 /v

The Autoexec.bat file contains

c:\dos\mscdex.exe /d:mscd001 /m:8

Where as sbide.sys,gscdrom.sys etc., are device drivers which are provided for particular cdrom drives. Where as parameter for sbide.sys, gscdrom.sys is /D:drivername parameter. This must be same for both config.sys, autoexec.bat i.e mscd000 or whatever it is. MSCDEX uses the above parameter to identify the correct cd-rom device driver. each cd-rom device driver currently in use must have a unique driver name. MSCDEX loads some other available drive letters might be used by other programs such as a network. So, to find out the number of logical drive letters available on you computer use LASTDRIVE command in config.sys file.