John, try Johnson Lam's CDROM binaries. Before I installed them my CDROM wouldn't work at all with files that came with "fdbootcd.iso".

http://johnson.tmfc.net/freedos/

You will need both QCDROM Driver and SHSUCDX CDROM Interface Driver. When you download the files put all of them in c:\fdos\bin. The actual file names will be as follows:

QCDROM.SYS
SHCDX33A.ASM
SHCDX33A.COM

In Config.sys modify the line for CDROM:

rem DEVICEHIGH=C:\FDOS\BIN\ATAPICDD.SYS /D:CDROM001
DEVICEHIGH=C:\FDOS\BIN\QCDROM.SYS /D:CDROM1

In Autoexec.bat rem out the line that references to SHSUCDX.COM and add:

SHCDX33A /D:?CDROM1 /C /V /~+ /Q+

Lester

-------------------------------
From: John Hupp <[EMAIL PROTECTED]>
 RE: FreeCOM memory allocation error with SHSUCDX
2006-05-03 16:52        

I wrote on April 15 (see original text below) about a memory allocation
error that I was getting on 3 computers running the very-little-modified
installation created by the bootable install CD.  The error *seemed* to be
heavily related to SHSUCDX -- it would disappear altogether on 2 of 3
machines if I used the /C switch to load it in conventional memory.

But now I think the error was due to one or more of the international
support features installed by default from the CD.  SHSUCDX was merely
triggering the error.  I think this because the error went away on all 3
machines when I removed NLSFUNC, CHCP, DISPLAY, MODE CON CODEPAGE, and KEYB. I can now load SHSUCDX without the /C switch and not trigger the error. And
I can locate SHSUCDX higher in AUTOEXEC.BAT without triggering the error.

I wish I had more precise info, but I think someone with technical debugging
capability will have to take it from here.  The only bit I can add is that
when I was singlestepping through bootup with one test configuration on one
machine, the error did not occur. But when I allowed an uninterrupted boot,
the error was generated after KEYB ran.

--John Hupp


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