To install an IDE compatible CD-ROM drive for use with REAL/32 you must first have the appropriate driver for DOS. Install this driver in accordance with the manufacturer's instructions.
Normally the DOS CD-ROM drivers are installed via the DOS file config.sys. When a reference to config.sys is made within your CD-ROM installation guide, make changes to the appropriate mconfig.sys file.
The line in the config.sys file that loads the driver is usually something like:
DEVICE = C:\CDROM.SYS
This line must be copied to the end of the REAL/32 configuration file mconfig.sys.
Reboot to allow this driver to take effect.
To access the CD-ROM from the REAL/32 command line you must run the IMSCDEX CD-ROM extension program.
This program defines which drive letter you wish to use as a CD drive. IMSCDEX has the following syntax:
IMSCDEX [/?|H] /D:drivename1 [/D:drivename2...] [/E] [/F:n] [/L:drive] [/M:n] [/V]
DEVICE = C:\(Your Driver.sys)/D:(Device
Provides multi-user / multitasking access to CD-ROM drives. IMSCDEX can be loaded from your autoexec.bat file or from the command line. (The device driver that came with your CD-ROM drive must be loaded from your mconfig.sys file).
/? or /H Displays help text.
Specifies the driver name of the first CD-ROM device driver. The drivename1 parameter must match the /D parameter specified in the mconfig.sys file for the driver.
The IMSCDEX command must include at least one /D switch
To install additional CD-ROM device drivers, specify an additional /D switch for each driver.
[/E] Specifies that the CD-ROM driver will be allowed to use Expanded memory (LIM EMS), if available, to store buffers.
[/F:n] number of file handles to allocate (the default is 20).
[/L:drive] specifies the drive letter to assigned to the first CD-ROM drive. Additional drives, if installed, are allocated sequential drive letters.
[/M:n] number of sector buffers to allocate (the default is 14).
[/V] Print out debug information during initialization
To configure a Hitachi® CD-ROM driver add to mconfig.sys:
DEVICE = C:\CDROM\HITACHIA.SYS /D:MSCD0001 /W:1 /P:300
Then run the TSR program from the command line.
C:\CDROM\IMSCDEX.EXE /D:MSCD0001 /M8
Defining Which Sessions May Access The CD-ROM
If you wish the CD-ROM drive to be active in all sessions, type the following as the last line in the autoexec.bat file:
If you only require the CD-ROM drive to be active in the first DOS session of every physical console, type the following as the last line in the autoexec.bat file:
IF “%3%”==”1” C:\REAL32\BIN\IMSCDEX.EXE
If you only wish to load the CD-ROM drive in the first DOS session of your main screen (i.e. the server), type the following as the last line in the autoexec.bat file:
IF “%1%”==”1” C:\REAL32\BIN\IMSCDEX.EXE
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