FreeDOS

FreeDOS is an open source operating system which is compatible with MS-DOS and applications designed for this older operating environment. If you've got a legacy application that you want to keep running, whether it's a classic game, an embedded system, or simply an old application, FreeDOS can help you do it.

Learn how to get started or download this handy cheat sheet for FreeDOS.

Person using a laptop

How to use the FreeDOS text editor

FreeDOS provides a user-friendly text editor called FreeDOS Edit.

Package wrapped with brown paper and red bow

Install and remove software packages on FreeDOS

Get familiar with FDIMPLES, the FreeDOS package manager.

Person using a laptop

Configure FreeDOS in plain text

Learn how to configure FreeDOS with FDCONFIG.SYS.

An introduction to GNU Screen

How FreeDOS boots

An overview of how your computer boots up and starts a simple operating system like FreeDOS.

Tips and gears turning

Automate tasks with BAT files on FreeDOS

Here's a helpful guide to batch files under FreeDOS.

Looking at a map for career journey

Set and use environment variables in FreeDOS

Environment variables are helpful in almost every command-line environment, including FreeDOS.

Subscribe to FreeDOS