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  • #2151533

    WinXP Memory


    by sid_kraft ·

    I have an application that requires a lot of memory on my PC. I am running Win XP Pro, SP2. The application runs under DOS so I have to use the ?Command Prompt? subset of windows. The problem I am having is that I am using a debug program from Microsoft for the Fortran language and it takes a lot of memory. I believe that Windows only will allow a maximum use of 3Gig of memory and I actually have 4Gig of memory. When I run the program, I get an ?Out of Memory? error. How can I use more memory under the Windows Op. Sys.? Any ideas will be appreciated.

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    • #2924985


      by sid_kraft ·

      In reply to WinXP Memory


    • #2924965

      Install a 64 Bit Version of the OS in use here is the only answer possible

      by oh smeg ·

      In reply to WinXP Memory

      Though if you are actually Running in DOS you need to set the Extended Memory as it’s not being mapped in a situation like this.

      The Out of Memory Messages is because you do not have enough Conventional Memory Available because Windows no longer moves most of the functions from Conventional Memory to Upper or Extended Memory. I think that you’ll find you are running out of Conventional Memory here.

      However I’m not sure what the solution is as I haven’t played with DOS for a very long time and I’ve never seriously Used M$ DOS.


    • #2924833

      DOS Mode

      by willcomp ·

      In reply to WinXP Memory

      I suspect you are limited by DOS mode memory which is 640K without extended memory in play.

      You may be able to configure a desktop shortcut for the DOS app and assign additional memory in shortcut properties.

      Type mem at command prompt to see how much memory is allocated in DOS mode.

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