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memory in dos/windows 3.1

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Original Message
Name: mutantpineapple
Date: February 15, 2005 at 01:08:04 Pacific
Subject: memory in dos/windows 3.1
OS: MS-DOS 6.22 w/ WFW 3.11
CPU/Ram: athlon xp 2600/512mb
Comment:

can somone explain to me how memory works in dos and win 3.1x? ive got 512 mb which should be plenty, but when i try and install any 16-bit internet explorer higher than version 3, i get told i need 4mb of memory to continue installation, I HAVE 4 MB!!! why is this message appearing on a system that to dos 6.22 and windows 3.1 must seem like a sports car? and how can i get round it?


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Response Number 1
Name: Jared_Igarashi
Date: February 15, 2005 at 02:08:33 Pacific
Subject: memory in dos/windows 3.1
Reply: (edit)

You've given an incomplete data. May I know the motherboard? Harddrive capacity? Technical Specifications of your PC?
I recall you must adjust the size of your swap file which must be greater thatn 4 MB!
Observe! Before you run WFG run the application Mem.exe!- You must have a reading that you are using 64 MB of RAM! - If not then you have not properly installed your 512 MB Memory....DOS only utilizes a maximum of 64 MB ram although you got a hardram that reads above 64 MB.


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Response Number 2
Name: rogerashley
Date: February 15, 2005 at 02:39:10 Pacific
Subject: memory in dos/windows 3.1
Reply: (edit)

Change the start-up so you start in MS DOS then run Memmaker, that will optimize base memory usage, then undertake as above.


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Response Number 3
Name: jboy
Date: February 15, 2005 at 10:00:47 Pacific
Subject: memory in dos/windows 3.1
Reply: (edit)

Not so sure that's indicated - the 'setup requires at least 4Mb' message is covered here

I'm not insensitive, I just don't care.


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Response Number 4
Name: dominicus
Date: February 15, 2005 at 11:47:51 Pacific
Subject: memory in dos/windows 3.1
Reply: (edit)

It's a *bug* in IE ..happens if you've got lots of RAM..follow jboy's link (above)..it'll show you how to get past it. i don't remember it offhand or i'd give it here..
P.S. it's not IE that has a problem with lots of RAM, it's only the installer...


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Response Number 5
Name: Mechanix2Go
Date: February 16, 2005 at 00:56:08 Pacific
Subject: memory in dos/windows 3.1
Reply: (edit)

As #4, probably a bug in old IE.

In those days, more than maybe 32MB was unheard of.

So the installer does a system call and looks for a memsize of > 4MB and expects a # maybe as big as 32 or 64.

When it gets a # in the 100s, it doesn't know what to do.

Problem may br avoided, but not solved, by using MetScape 3x/4x

HTH

M2


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Response Number 6
Name: Mechanix2Go
Date: February 16, 2005 at 01:28:21 Pacific
Subject: memory in dos/windows 3.1
Reply: (edit)

Well.

Spelling counts.

I meant Netscape 3x 4x.

As I think more about it.

It's probably getting mem size, which in your case is 512 [200 hex] and putting the low byte into a location for a compare.

[and maybe ignoring the high byte]

Unfortunately, the low byte is 00, so it exits with a msg must have >4MB.

If this is how it works, you could change physical mem size to almost anything BUT a multiple of 256.

But that seems a pretty mickey-mouse approach.

M2


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Response Number 7
Name: mutantpineapple
Date: February 16, 2005 at 23:20:24 Pacific
Subject: memory in dos/windows 3.1
Reply: (edit)

ok thanks for the link, that fixed it up nice, thanks everyone for posting advice


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Response Number 8
Name: jboy
Date: February 17, 2005 at 15:19:56 Pacific
Subject: memory in dos/windows 3.1
Reply: (edit)

Glad that was it.

Link provided courtesy of Lightspeed's reference page

I'm not insensitive, I just don't care.


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