How to get a widescreen view for dosbox

Written by mandy slake
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DOSbox allows users to play games that were originally meant to run under MS-DOS on computers that are operated by newer versions of Windows. The DOSbox screen automatically opens to the game's preferred resolution, but on newer computers with widescreen monitors, the image could come out stretched. You can change the resolution on both full screen mode and normal window mode by editing a configuration file.

Skill level:
Moderately Easy

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Instructions

  1. 1

    Click the "Start" button on the Windows task bar, then type "dosbox.conf" in the search bar at the bottom.

  2. 2

    Click "See more results" then click "Computer." Wait for the "dosbox.conf" file to display in the window.

  3. 3

    Right-click on the file, then click "Open with..." and select Notepad.

  4. 4

    Locate the lines "fullresolution=" and "windowresolution=" in the file. The former controls the resolution of the screen in full screen mode and the latter controls the resolution of the normal window. The part after the equal sign may have a screen resolution size, or the words "Original" or "Desktop."

  5. 5

    Change the part after the equal sign to your preferred widescreen resolution. If you are changing it to a specific resolution, the first number is the width of the screen in pixels, the second number is the height. So if you want to change the normal DOSBox window resolution to widescreen, the correct format would be "windowresolution=1366x768" to set it to 1366-by-768 pixels. If your widescreen monitor has a different resolution, use that resolution for the numbers you enter.

  6. 6

    Click "File" then click "Save" to save your chances.

Tips and warnings

  • You can find your monitor's resolution by right-clicking on an empty area of the Windows desktop, then left-clicking on "Screen Resolution."
  • Switch back and forth between full screen mode and windowed mode by pressing the "Alt" and "Enter" keys together.

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