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An acquaintance of mine has some old DOS games on a floppy disk that he is trying to run. When he opens a DOS window in Win95 or boots the PC into DOS and tries to run the executable, he gets the message "Program too big to fit in memory." These games are tiny, less than 100K in size. I know it must be a DOS memory management issue of some kind, but I don't know what lines to put in config.sys to fix it. Any ideas?

Something to do with HIMEM.SYS
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Here is what my config.sys file looks like currently:
files=20
buffers=20
device=c:\windows\himem.sys /testmem:off
dos=high,umb
devicehigh=c:\windows\emm386.exe noemsI had found this on another site while searching for an answer, but it doesn't work either. Am I missing something, or is something out of order?

If these are real old problems, your problem may be the old Linker bug that causes these problems if you try to load programs into too low of a memory address. Normally you get the error message "Packed file corrupt" You could try to use the LOADFIX.COM program that comes with most versions of DOS. Worth trying. (ex. LOADFIX A:\game)

Here are some things to try. Remove the noems from the config.sys entry in case the game tries to use EMS memory. Exit to dos on the shutdown menu and enter MEM or MEM /C to see where the memory is going.

In my experience, "Program Too Big to fit in memory" has been caused by a corrupt executable, or perhaps one intended for a different operating system. Since you said that they were "tiny" old dos programs, I really doubt that it is a memory problem.
Do you know if these disks run successfully on other systems?

I've been told they used to run, but I don't know how long ago, and on what kind of platform. The games are circa 1984-1986. I've tried all the suggestions given here, and dozens of others I found on the Internet, but still no luck. The most conventional memory I can squeeze out is 620K, but I still get the "Program too big to fit in memory" message.

I remember getting that, in one case, when I tried to run a game for the PC Junior on an AT. I think I have also gotten it when I accidentally renamed a non-executable as an exe (although the usual error would be "error in exe file"). So I think it may be something along those lines.

I have a 473MB exe file and i am in windows xp pro, with 384 or so MB of RDRAM, P4 1.7Ghz and i cant run the stupid program in the terminal. well, if you can help, thanks!
it may be a zip archive or something of that sort.

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