dormcat wrote on 2022-12-05, 17:22:
For the record, if no DOS games/apps using the CD-ROM has to be operated under Win98SE then no DOS driver is needed in CONFIG.SYS at all.
Yes, that's right in 99% of the cases, I think.
But personally, I've experienced special cases in the past, too.
a) Windows 9x can use DOS-based drivers in case no Windows driver is available.
MSCDEX isn't required for this to work, Windows 9x has a Protected-Mode driver as an CD-ROM extension (some sort of MSCDEX).
In the 90s, I experienced this scenario on my father's 386DX-40. His Mitsumi Lu005 had no Windows support.
b) The built-in MSCDEX alternative in Windows 9x does not support CD-i anymore.
If you need to watch films on CD-i based CD-ROMs (not to be confused with Video-CD), then MSCDEX is needed.
Alternatively, an experimental Windows driver must be used.
http://www.icdia.co.uk/articles/filesystem.html
c) Support for Japanese or pre-ISO-9660 formats (from the 80s) was dropped in Windows 9x.
MSCDEX is again required to read them..
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