Extended memory in Win 3.1 \ VOGONS

Extended memory in Win 3.1

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First post, by buttertweet

Posted on 2014-05-03, 22:27

buttertweet Offline

Rank Newbie

Rank: Newbie
Posts: 13
Joined: 2014-05-03, 00:15

Hi, I have gotten Windows 3.1 to run successfully in Dosbox. However, I notice that when I type MEM from the starting command prompt, I have about 15MB of extended/expanded memory. When I run Win3 and double click on the command prompt in Main and then type MEM, there is only 1MB (1024k). Elsewhere on the net I read:

"If you use the mem command to view memory from within a Windows 3.1 virtual machine, you will only see the amount of memory available to the virtual machine."

So I assume this applies in my case, and 1MB is all I get in Windows? Can I increase this amount? The "system resources" under About... show 48MB free but I guess that includes the swap file.

Reply 1 of 1, by VileR

Posted on 2014-05-04, 01:47

VileR Offline

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Posts: 2211
Joined: 2003-05-14, 22:11
Location: 1-01-80 0:00a

"Virtual machine" refers to the environment that Windows 3.1 creates to execute non-Windows programs (like MEM) - they're run in virtual 8086 mode and won't see more than 1MB normally. This has nothing to do with the total amount of memory available to Windows itself.

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