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Costa is a program which runs on top of MS-DOS or compatible operating systems, and replaces the DOS-prompt with a clean, user-friendly interface - a so called GUI (Graphical User Interface). Costa comes with full mouse and keyboard support, and a bunch of useful accessories.
The first release came in 2004, and over the years - and through several releases - Costa has gradually evolved into what it is today.
Did I mention that Costa is provided absolutely free of charge?
You can download the latest version of Costa now, absolutely free of charge. To get started, simply unzip the downloaded archive and run Costa. Full documentation is included in the download.
Since September 2017, the full source code has been available on GitHub, released for free usage under the MIT license. Visit GitHub to see the source code, and to pull a copy for your own use.
Download Costa 1.8.0 Get source code
Looking for older versions? Check the archive, which also has a complete log of changes in every version.