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FileOptionsDOSBox

cyberfox edited this page Aug 12, 2026 · 1 revision

Program options dialog page "DOSBox"

On this page you can configurate the DOSBox versions to use with DFendX.

  • DOSBox installation
    DFendX can manage multiple DOSBox installations. From this dropdown box you can choose which installation you want to configurare. You can add and delete as many installations as you want to, but on installation - called "Default" - is marked as undeleteable. You can choose for each profile from the profile editor which DOSBox installation to use.
    (Default value for this option: "Default")
  • DOSBox folder
    In this edit field you can enter the path of the DOSBox installation you want to use.
    In portable mode this directory is stored relatively to the program folder at program end. When DFendX is started again it will make absolute paths for the three directories again. So this directory is shown here with absolute paths in any operation mode.

"More settings for this DOSBox installation" dialog

This button will only be visible if the advanced setup mode is selected at the bottom of the program options dialog.

  • DOSBox folder
    (The path in this edit field is the same as in the main program options window.) In this edit field you can enter the path of the DOSBox installation you want to use.
    In portable mode this directory is stored relatively to the program folder at program end. When DFendX is started again it will make absolute paths for the three directories again. So this directory is shown here with absolute paths in any operation mode.
  • DOSBox language file
    In this box you can select the language that should be used inside DOSBox for messages. DFendX will list all available *.lng files from your DOSBox directory. To add a new (downloaded) DOSBox language just copy the *.lng file to your DOSBox directory and reopen the program options dialog.
  • Keyboard layout
    From this dropdown box you can select the keyboard layout you want to use in DOSBox. If you choose "default", the default keyboard layout from your language file will be used. (Or the keyboard layout from the started profile if you have selected a custom keyboard layout in the profile.)
  • Codepage
    From this dropdown box you can select the codepage you want to use in DOSBox. If you choose "default", the codepage layout from your language file will be used. (Or the codepage from the started profile if you have selected a custom codepage in the profile.)
  • Keymapper config file
    In the keymapper configuration file changes to the default keyboard setup made via the DOSBox keymapper are stored. The path to the keymapper file can be absolute or relative to the base directory.
    (Default value for this option: ".\mapper.txt")
  • Additional command line parameters when calling DOSBox
    In this edit field you can specify additional command line parameters which will be used when starting DOSBox.
    (Default value for this option: none)
  • Hide DOSBox console
    The DOSBox console will show additional status and error messages while DOSBox is running. When running a normal game the colsole is not needed and can be hidden by activating this checkbox.
    (Default value for this option: on)
  • Center DOSBox window
    If this option is turned on, the DOSBox window will be centered on the desktop if starting an non-fullscreen profile.
    (Default value for this option: off)
  • Disable screensaver when DOSBox is running
    By activating the option you can avoid the starting of the Windows screensaver while DOSBox is running even if you do no enter anything via mouse or keyboard.
    (Default value for this option: off)
  • Wait before closing the console if DOSBox has an error
    If this option is activated, the DOSBox console will not automatically close on DOSBox close if an error occured while DOSBox was running.
    (Default value for this option: on)
  • SDL videodriver
    In this dropdown box you can select the videodriver SDL should use. SDL is the system-backend of DOSBox.
    (Default value for this option: "DirectX")
  • Custom settings
    The lines entered in this edit field are added to the DOSBox configuration file when running DOSBox. You can overwrite all other settings by writing something in this box. Also settings perhaps offered by some newer DOSBox versions can be used by writing the configuration lines to this field.

See also:

Program options dialog
Global DOSBox settings

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