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EMM386 and Windows95

By Gregg S ·
Does EMM386 serve a purpose with Windows95?
We run a rather complex DOS based database accounting program under Windows. The support department had us rem out the Device=emm386 statement in Config.sys, saying we do not need it. Now the program locks up more often, so now I am confused.

I know in generalities what EMM386 did under DOS, but I do not know its function under Windows and a Pentium 200MMX PC with 32MB of RAM.

Thanks for any input! Gregg

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EMM386 and Windows95

by yorkster In reply to EMM386 and Windows95

emm386.exe is effective under win 95 it controls your conventional memory and since your running a dos app it will run in the first 640 k of memory. a better setting would be as follows
device=himem.sys
dos=high,umb
device=c:\windows\emm386.exe noems
you can then run mem /c /p to see what programs are being loading into high mem, then adjust them so that the biggest ones load first. that way you will get the most conventional memeory possible
hope this helps

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EMM386 and Windows95

by Gregg S In reply to EMM386 and Windows95

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EMM386 and Windows95

by Don Christner In reply to EMM386 and Windows95

Hi Gregg,

Look here on the TechRepublic site for an article named "Understanding low-level memory under Windows 98", written by Brien Possey and dated March 23, 2000. Very good info on how to manage memory.

Don

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EMM386 and Windows95

by Gregg S In reply to EMM386 and Windows95

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EMM386 and Windows95

by vinh.le In reply to EMM386 and Windows95

Hello,

I agreed with Gary. Adjust your config.sys to have the following

device=c:\windows\himem.sys
device=c:\windows\emm386.exe noems
dos=high,umb
files=99
buffers=30,0
lastdrive=z

This should help with your MS-DOS based application.

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EMM386 and Windows95

by Gregg S In reply to EMM386 and Windows95

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EMM386 and Windows95

by Duong beo In reply to EMM386 and Windows95

Hi,

The answer is yes. EMM386 originally had 2 task:
- Dealing with EMS.
- Helps loading drivers, DOS and some other utilities into UMB (unused memory blocks in Upper Memory Area between 640K and 1024K) and HMA (memory between 1024K and 1088K).

After the born of Win9x, the first purpose is no longer needed as Windows9x has its own way for managing EMS. It will grant EMS to old DOS applications when needed but without EMM386, you cannot load anything into UMB, HMA. As a result, they willflock up your conventional memory and you get low in memory for DOS applications. 1st answer is right on track. You can use the command EMM386 with parameter NOEMS (NO Expanded Memory Specification) then in the config.sys you can load things into UMB and HMA as Vinh.LE's answer.

Good luck,

Duong beo

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EMM386 and Windows95

by Gregg S In reply to EMM386 and Windows95

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EMM386 and Windows95

by isys In reply to EMM386 and Windows95

The parameters in your AUTOEXEC.BAT and CONFIG.SYS are run after your registry and could have the effect of fragmenting your system memory. I also have a resource-hog DOS program, and what worked for me was to increase the FILES= and BUFFERS= statements in the CONFIG.SYS. In Windows 95 you still have the MS/DOS limit of 255 for the FILES statement; I use 220. BUFFERS I set to 40. It works OK for me.

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EMM386 and Windows95

by Gregg S In reply to EMM386 and Windows95

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