Open Source MS-DOS Software

A graphical web browser with an emphasis on security, performance, and portability.

Provide access to long file names under real-mode DOS. Supported file systems: FAT12/16/32, ISO9660, Joliet. Supported operations: dir, copy, mkdir, rmdir, ren, cd, del.

Free, functionally equivalent clone of the Microsoft MS-DOS Shell.

Development environment for OS/2 and DOS

This is the source code for the 1994 DOS shareware game God of Thunder (Turbo C/Assembler). It is a good example of how not to code in C. I was once told it was impressive that it actually worked, so that's something. This is only the main source code here. I have released it to the public domain. Do whatever you want with it. It will not compile as-is. There is at least 1 3rd party compression file missing and the sound/music code was a licensed library that is not open source. The opening/high score/game select screens are also not included. The game itself can be found for free on Steam. The graphics of the game are not open source and may not be used in any commercial projects. The music and sound effects are public domain but I would appreciate credit to "Roy Davis" if you use any of the music. He was my father and he passed away in 2011. The music and other stuff is in GOTstuff.zip. Sorry, but I cannot offer any support.

JWasm is a free MASM-compatible assembler with these features: native support for output formats Intel OMF, MS Coff (32/64-bit), Elf (32/64-bit), Binary, Windows PE (32/64-bit) and DOS MZ. precompiled JWasm binaries are available for DOS, Windows and Linux. For OS/2 and FreeBSD, makefiles are supplied. Instructions up to AVX are supported. JWasm is written in C. The source is portable and has successfully been tested with Open Watcom, MS VC, GCC and more. As far as programming for MS Windows is concerned, JWasm can be used with both WinInc (32/64-bit) and Masm32 (32-bit). Since v2.01, it will also work with Sven B. Schreiber's ancient WALK32. C header files can be converted to include files for JWasm with h2incX. JWasm's source code is released under the Sybase Open Watcom Public License, which allows free commercial and non-commercial use. There's a bunch of source samples available - they are supplied with the precompiled binary packages.

I'm preserving Japheth's MS-DOS extender. It features 16bit, and 32bit capabilities with the ability to run 16bit OS/2 program, and 32bit Win32 code on Vanilla MS-DOS.

FreeDoor is a 32-bit BBS Door Development Kit for Windows and OS/2. All up-to-date information and future releases are available from http://www.elysoft.net/

Juego en modo MS-Dos basado en el libro de Eragon. NO COMPATIBLE con Windows Vista / Windows 7.

XC is a fast, classic two-panel file manager for Win32 and MS-DOS.

I'm taking various older versions of the OS/2 based EMX port of GCC and re-hosting them on Win32. This way I can use multiple core machines to build my OS/2 side projects.

Since I'm having a hard time of tracking down older versions of UAE, I'm going to upload everything I have for prosperity. And to further preserve the old versions, I'm slowly converting milestone releases to run on MinGW via SDL.

3D Graph is a suite of tools designed for a DOS machine. It allows the user to design a 3 dimensional scene using a specially designed editor and render the scene using an optimised renderer. It is no substitute for a commercial ray tracer, but it is far

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Amberfish Arts is a community for enthusiasts of classic adventure games as well as a hub for high-quality fan projects. IP-SCUMM 2.0 is the 2D adventure engine behind some of those projects. Coded in C++, IP-SCUMM is both very portable and feature rich.

AutoInstaller is a program which can install and uninstall programs based on the decision of plug-ins. These could include by schedule, at user demand, or a more complex scenario. It uses plug-ins to handle tar.gz, tgz, zip, and rpm files.

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Engine_3D is a real-time 3D engine project grabbed from my old data. The entire 3D rendering is pure software: no OpenGL or the like, no 3D graphics card acceleration! And: Engine_3D is completely programmed in Ada. Some parts of the 3D engine, like the animated bump mapping, are still waiting to be ported to my newer 3D project, GLOBE_3D !... DOS and Linux versions available. Remarks for the DOS version: It is also a funny example of a game system almost fully in Ada, including sound driver, graphics driver, keyboard driver. The only things not in Ada there are the file system (MS-DOS), the 32-bit DOS extender (CWSDPMI) and the mouse driver. For running, I recommend DOSBox. For building from sources, you'll need the DJGPP compiler, which contains a version of GNAT - seems to be still updated as in June 2016 ! Mirror: https://github.com/zertovitch/engine-3d

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FarSo is a Dos multitasker GUI, actualy in portuguese and in PASCAL. Currenctly its inactive. The project was rewrited to C++ and used as the GUI of http://sourceforge.net/projects/dccnitghtmare/

IGL (Intuition Graphics Library) is a TurboPascal Graphics library which implements a "Amiga-a-like" interface. IGL is an inactive project (since 1991)

Kutu-Dizmece is a "stack-attack" like game.

This is a tracker (http://tinyurl.com/ye3ypcy) for MS-DOS that uses the OPL-2 chips present in AdLib compatible cards to generate sound using FM synthesis. It was mainly developed using Borland Pascal (with some assembler bits by Keywiz) in a 386dx with a Sound Blaster Pro card, and even though it wasn't 100% finished, it was functional enough to create 3 demo songs which are included in the package. I originally made this back in 1994 when I was 17 and active in the argentine demoscene, but I will not be developing this any further, so I'm posting it here in case anybody is interesting in continuing it. Just let me know. You can see a brief demo video here: http://youtu.be/xQQvtjI7THg NOTE: This has been tested on current hardware and it's confirmed working using DOSBox 0.74 under Windows 7 x64.

Software application that permanently erases the contents of a hard drive or floppy disk using multiple passes on IBM PC compatible computers. User must have a Microsoft DOS compatible boot disk to start the computer in DOS Shell.

Memory Supervision System (MSS) is a handy tool for debugging dynamic memory bugs and logging memory usage information.