Setting Custom Environments
For XP's DOS emulation

Custom DOS environments can be set for individual games by modifying separate CONFIG.NT and AUTOEXEC.NT and modifying the properties of the executables for each game that you want to setup. Windows will then use these to set the DOS environment for your game, much as DOS used CONFIG.SYS and AUTOEXEC.BAT to set its environment.


  1. Copy both CONFIG.NT AND AUTOEXEC.NT to your game's directory from your Windows\System32 directory.
  2. Open the CONFIG.NT or AUTOEXEC.NT files (the ones in your game's folder) in Notepad and edit as you would the CONFIG.SYS or AUTOEXEC.BAT files and save your changes.
  3. Right-click on the games executable file and choose properties. Go to the Program tab and click on the Advanced... button. Change both paths to point to your altered CONFIG.NT and AUTOEXEC.NT files in your BaK directory.

    autoexec filename: drive:\ dir\autoexec.nt
    (example: C:\ MYGAME\AUTOEXEC.NT)

    Config filename: drive:\ dir\config.nt
    (example: C:\ MYGAME\CONFIG.NT)

The Properties Window

On the memory tab of the Properties window, you can change your memory settings (the default for all settings will be "Auto"). Note: For ease of use you may also want to check the 'Close on exit' option in the program tab of the Properties window.


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