Michael Devore schreef:
We've discussed loading HIMEM at the DOS prompt after CONFIG.SYS
processing before, too. It's a bad idea that could easily open the
floodgates of bug reports for people wondering why their drivers
aren't loading or working properly, and why XMS/EMS memory or
HMA/UMBs are missing or misbehaving. I don't want any part of it,
even though the actual code changes necessarily for basic setup would
likely be small relative to what's already been done to it.
No need to change things. I've already modified my FreeDOS bootdisk like
this:
MENU [1] Load XMSdriver [2] SafeMode [3] Ask me (default) [4]
HIMEM+EMM386
MENUDEFAULT=3,2
Default is 3, which loads FDXMS286 on the commandline if user wants. (no
DOS=HIGH ofcourse, nor command.com into XMS)
In case of trouble, or more memory wanted, use [1].
In case of stress-test, use [4]
And when you want to abort early to run some programs, select [2]
Note that XMSMMGR is rarely mentioned by Microsoft and has a
microscopic fraction of references anywhere compared to HIMEM. That
condition is quite pertinent to this discussion. XMSMMGR appears to
be a stripped-down hack program forced into creation so Windows could
be installed even when HIMEM was not loaded, and not intended for
general DOS use.
that's true, and almost no-one will load config.sys drivers outside of
config.sys. Not even for CDROM. commandline driver loading is just a
(flexible) emergency tool.
As far as EMM386, I am not sure one could ever reliably load EMM386 at
the command prompt post CONFIG.SYS drivers and COMMAND shell, plus a
scattering of AUTOEXEC TSRs. I am sure I don't want to try.
that would be a kind of virtual suicide indeed. DEVLOAD EMM386.EXE and
then running MEM might work, but that's about it.
Any serious (ab)use of the EMM386 driver then (by games for example)
will probably crash the system.
Bernd
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