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Setting up config.sys + autoexec.bat to boot DOS 7.1 on system with 4 gb ram?

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Human Being

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Aug 9, 2015, 8:57:33 PM8/9/15
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Smartdrv.exe isin't loading because it claims there is no XMS memory
available to it.

My config.sys is:

DEVICE=C:\DOS\HIMEM.SYS /verbose
DEVICE=C:\DOS\EMM386.EXE NOEMS VERBOSE
DOS=HIGH,UMB,NOAUTO
BUFFERSHIGH=50,0
FILESHIGH=50
STACKSHIGH=32,512
SWITCHES /F /W
BREAK=ON

Autoexec.bat is:

LH C:\DOS\SMARTDRV.EXE A- B- C+ /V 4096 4096 /E:8192 /B:8192

This is DOS 7.1 (the DOS that came with win-98se).

I've tried reducing config.sys by removing:

BUFFERSHIGH=50,0
FILESHIGH=50
STACKSHIGH=32,512

but smartdrive still doesn't load. The mem command seems to show that
DOS doesn't understand how much XMS ram there is, or doesn't know how to
use it. I don't want to pull any ram out of the system to get this to
work. What other tricks can I try?
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