CD-ROM Setup User's Guide May 18, 1993 NOTE: THE DEVICE DRIVER ON THIS DISK WILL OPERATE PROPERLY ONLY WITH CM205 DRIVES MANUFACTURED AFTER JUNE 1, 1993 1. If there will be only one CDROM drive on your system 2. If there will be more than one CDROM drive 3. If you are connected to a network 4. If you want to load the CDROM software into upper memory 5. If you just want to update the CDROM software files 6. If you want to verify the CM250 host adapter settings 7. If you want to use host RAM for buffers (/M option) 8. If you are using DOS 6.0. --------------------------------------------------------------------------- Section 1. If there will be only one CDROM drive on your system If you want to use the factory settings (i.e. you have not changed the jumpers on the CM250 host adapter), you may run Quick Setup, by pressing F3. This will install the CDROM software on your startup disc and modify your startup files to load the software when your system is restarted. If you need to change the settings or the name of the directory where Setup will install the software, run Full Setup, by pressing F4. --------------------------------------------------------------------------- Section 2. If there will be more than one CDROM drive Run Full Setup, by pressing F4, to install the CDROM software files, but skip editing CONFIG.SYS and AUTOEXEC.BAT, the startup files. In the CONFIG.SYS file, Setup allows for only one active statement loading a device driver for the CM250 host adapter, either DD250MS.SYS or DD250MSX.SYS. Setup allows you to change the options settings on that line, but not to add another. To access more than one CM250 host adapter, you must set the jumpers on each adapter to a unique port and a unique IRQ, and then you must edit the CONFIG.SYS file to add a "DEVICE=" statement for each adapter. Use the /P and /I switch options to assign each copy of the driver to a specific adapter, and use the /D option to assign each a unique tag name. Setup does not detect any device driver other than DD250MS. In the AUTOEXEC.BAT file, Setup allows for only one /D:tag_name switch in the statement which loads the Microsoft CDROM Extensions program, MSCDEX.EXE. Setup allows you to change the tag name, but not to add another. To access more than one CDROM drive thru MSCDEX, you must edit the AUTOEXEC.BAT file to add a /D switch for each device driver you have loaded. Drive letters will be assigned by tag names from left to right. For example, to access two CM250 adapters and one generic adapter, in the CONFIG.SYS file : DEVICE=C:\CDROM\DD250MS.SYS /P:340 /I:3 /D:MSCD001 DEVICE=C:\GENERIC\GENERIC.SYS /D:MSCD002 DEVICE=C:\CDROM\DD250MS.SYS /P:330 /I:6 /D:MSCD003 and in the AUTOEXEC.BAT file : C:\CDROM\MSCDEX /L:G /D:MSCD003 /D:MSCD001 /D:MSCD002 The drive attached to the CM250 host adapter set for port 340 and IRQ 3 is drive H, the drive on the other CM250 is drive G, and the generic drive is drive I. --------------------------------------------------------------------------- Section 3. If you are connected to a network You may use Setup to install the CDROM software files and to edit your startup files. Before restarting your system, you must edit your AUTOEXEC.BAT file to move the statement that loads the Microsoft CDROM Extensions program, MSCDEX.EXE, so that it is after any statements that load network software and before any that load an operating environment (e.g. DOSSHELL or Microsoft Windows). The network software will not install properly if MSCDEX is installed first. It is recommended that your network administrator inspect the changes Setup makes to your startup files. --------------------------------------------------------------------------- Section 4. If you want to load the CDROM software into upper memory The device driver for the CM250 host adapter, DD250MS.SYS, has been successfully tested with the DEVICEHIGH= feature of DOS 5.0, which can be used to load device drivers into upper memory. Please refer to your DOS manuals for instructions on using DEVICEHIGH=. You will have to edit your CONFIG.SYS file to make this change. The DD250MS.SYS driver has not been tested with other, similar software. The Microsoft CDROM Extensions program, MSCDEX.EXE, cannot be loaded into upper memory. The /E switch asks MSCDEX to allocate expanded memory for its buffers only. --------------------------------------------------------------------------- Section 5. If you just want to update the CDROM software files Run Full Setup, by pressing F4. After the files have been copied, you can skip editing the startup files, CONFIG.SYS and AUTOEXEC.BAT, keeping your current startup settings. --------------------------------------------------------------------------- Section 6. If you want to verify the CM250 host adapter settings The CM250 host adapter and the CDROM drive must be installed before running this test. Run Verify Setup, by pressing F5. This will try to access the CDROM drive using the settings for port and IRQ from the DEVICE= statement that was added to the CONFIG.SYS file. If you have not edited the CONFIG.SYS file during this run of Setup, Verify Setup will use the factory settings. If Verify Setup fails: 1) check that the settings match the jumpers on the host adapter, 2) check that no other expansion boards use those settings, and 3) check that all cables are properly installed. --------------------------------------------------------------------------- Section 7. If you want to use host RAM for buffers (/M option) Both MSCDEX and DD250MS allow you to allocate space in host RAM, your computer system's main memory, for buffers. In both cases, the number of buffers is given by an option switch, /M. MSCDEX will keep directory information in its buffers. DD250MS uses the buffers to read ahead. Allocating more buffers will usually improve performance, but at the cost of increasing the memory used by these programs. It is recommended that you accept the defaults offered. These settings will give good performance on most systems for most applications. --------------------------------------------------------------------------- Section 8. If you are using DOS 6.0. DOS 6.0 contains a compatible copy of MSCDEX.EXE. The version of the Microsoft CDROM Extensions program, MSCDEX.EXE, which is included on this distribution disk is NOT compatible with DOS 6.0 - do not install it. SETUP will automatically use the DOS 6.0 version if it finds that the DOS version is 6.0. --------------------------------------------------------------------------- Copyrights DD250MS.SYS, SETUP.EXE, USRGUIDE.TXT (c) copyright 1991,1992,1993 Laser Magnetic Storage International SETUP.EXE portions (c) copyright 1991 Borland International MSCDEX.EXE (c) copyright 1986,1987,1988,1989,1990,1992 Microsoft Corporation