Open Source MS-DOS Software
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Software for MS-DOS
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System Informer
View and manage processes, services and more with this powerful tool
System Informer is a free and open source process viewer. This multi-purpose tool will assist you with debugging, malware detection and system monitoring. -
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Free Pascal Compiler
Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler
A 32/64/16-bit Pascal compiler for Win32/64/CE, Linux, Mac OS X/iOS, Android, FreeBSD, OS/2, Game Boy Advance, Nintendo NDS and DOS; semantically compatible with Delphi, Borland Pascal and Mac Pascal (partially) with extra features, e.g. operator overloading. -
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dos2unix
Dos2Unix / Unix2Dos - Text file format converters
dos2unix includes utilities to convert text files with DOS or MAC line breaks to Unix line breaks and vice versa. It also includes conversion of UTF-16 to UTF-8. -
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VLC media player
The best free media player for video and DVDs
VLC is an open source cross-platform multimedia player and framework, which plays most multimedia files, DVDs, Audio CDs, VCDs, and various streaming protocols. VLC media player is simple, fast, and powerful. It plays everything, files, discs, webcams, devices, and streams. VLC plays most codecs (MPEG-2, DivX, H.264, MKV, WebM, WMV, MP3, etc.) so no codec packs are needed. It runs on all platforms: Windows, Linux, Mac OS X, Unix, etc. And VLC is hassle free with no spyware, no ads, and no user tracking. -
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hexcompare
console-mode visual binary diff
hexcompare is a curses-based utility to compare and identify differences between two binary files. These differences are then represented visually with an interactive block diagram. -
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4tH compiler
A Forth compiler with a little difference
4tH is a Forth compiler with a little difference. Instead of the standard Forth engine it features a conventional compiler. 4tH is a very small compiler that can create bytecode, C-embeddable bytecode, standalone executables, but also works fine as a scripting language. It supports about 95% of the ANS Forth CORE wordset and features conditional compilation, pipes, files, assertions, forward declarations, enumerations, structures, suspended execution, recursion, include files, etc. It comes with an RPN calculator, BASIC interpreter, line editor, preprocessor, compiler, decompiler, C-source generator, a virtual machine, and a multitasking environment. -
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FakeNES is a highly portable, Open Source NES and Famicom emulator. It runs on all modern operating systems and has an actively maintained DOS port for enthusiasts. Support for phones and other mobile platforms is under development. The majority of the project is entirely original code released under the zlib/libpng license. Contributed and third-party code is included under GNU licenses.
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HimemX
The ultimate DOS XMS memory manager
This is HimemX - the open-source XMS memory manager of FreeDOS. Uses unreal mode when possible and has a very low conventional memory footprint. Got any patches? Noticed any bugs? Please report your findings on the FreeDOS mailing list: freedos-user@lists.sourceforge.net -
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Wcd is another Norton Change Directory (NCD) clone. Wcd is a command-line program to change directory fast. It includes a full screen interactive directory tree browser with speed search and a fast way to choose between multiple matches.
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VPA
Client to play VGAPplanets or planets.nu
VGA Planets Assistant (VPA) is a client program for VGA Planets PBEM game. Requires: Dosbox from https://www.dosbox.com It works with original host (THOST: www.vgaplanets.com) and Portable Host (PHost: www.phost.de, phost-contrib.sf.net, hosted by https://planetscentral.com) and the new web-based NU-Host (https://www.planets.nu) by using additional tool streu's c2nu.pl (https://github.com/stefanreuther/c2nu). Maintained by sfplanets. -
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uHex
A simple, fast and 8086-compatible hex editor
uHex is a simple and fast, multiplatform hex editor. It's primarily written for DOS, but compiles on POSIX just as well. uHex has been written with care to work fast even on an 8086 CPU, providing support for large files (up to 2 GiB) while using minimal amounts of memory. "uHex" stands for "micro Hex" (it should actually be spelled µHex, but DOS operating systems do not allow non-ASCII symbols in filenames, thus the official name became just "uHex"). uHex supports several video text modes (80x25, 80x43, 80x50.. and any other, as long as it has at least 80 columns), both in color and black & white modes. Hardware requirements (DOS version) uHex has very low requirements. It runs on anything that provides: - an 8086/8088 compatible CPU, - a MS-DOS 2.0 compatible operating system, - ca. 20K of free conventional memory, - an 80 columns video mode. -
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A very special TETRIS clone, the Queen of Tetrises, the TETRIS Queen, with 50 levels, 30 musics, total support for 2 player, and two modes: classic & destructor (with bombs and mega-bombs), this and much more in one free game developed with Allegro lib.
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A Windows-based ansi/ascii editor with unlimited multi-user capabilities.
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Fast and efficient self-assembling 80x86 assembler for DOS/Win32/Linux; with 8086-80486/Pentium/MMX/SSE/AVX/XOP instructions support, 16-bit/32-bit/64-bit code, binary/MZ/PE/COFF/ELF output formats.
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AiR-Boot is a x86 boot-loader that resides completely in track 0 of the harddrive. It‘s also independent of any OS, features a BIOS-like built-in setup, is localized to German, Dutch, French, Italian, Russian (including Cyrillic) and Swedish.
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Casino
Slot machine (one-armed bandit).
Simulator of a one-armed bandit (slot machine) from developers from the Soviet Union. At the start, the player has 9995 monetary units, the casino - 10005. The goal is to ruin the casino. First, you need to place a bet (from 5 to 375), then press Enter, and the slot machine will start working, and so on over and over again. On the left there is a list of combinations that give different points. -
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Kraptor - Shoot 'em up scroller game
Kraptor is a classic shoot 'em up scroller game
Kraptor is a classic shoot 'em up scroller game, where you must fight against tons of bad dudes. This is a full game with massive destruction, powerful weapons, and high speed action in varied levels. Works for Linux, DOS, Windows, QNX, Mac Os, etc.. -
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Emeritus Pong
A clone of the good old "Pong" game.
Emeritus Pong is a clone of the good old "Pong" game. It tries to be relatively close to the original, therefore no fancy graphic or astonishing sound effects there. Emeritus Pong is written to be able to run on any modern PC. There are three versions available: DOS, Windows and Linux. Emeritus Pong features also a cool demo mode, which makes it playing against itself, displaying the current time as scores. The game is programmed to run flawlessly on any modern PC, but it will run on older architectures, too. A 90 MHz Pentium CPU and 2 Mb of RAM should be enough to run comfortably the DOS version. Emeritus Pong may run in any usual resolution, ranging from 320x240 to 1280x1024, fullscreen or windowed. If you would like to use any other video mode (not available from the game's setup), you will have to manually edit the empong.cfg configuration file. Windows and Linux versions require a sound card for sound, and DOS version simply uses the internal PC Speaker. -
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Indeterminate Beam Analysis Program
Calculates SF, BM, Slope and Deflection.
IBAP is a structural beam analysis software that can be used by Civil, Mechanical and Structural Engineers, Beam designers and Engineering students for both professional and academic purposes. -
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Dice endgames
Dice endgames — generation of endgames with dices.
Dice endgames is a gambling and logical game with perfect information, at the same time being a variety of both variants of chess and checkers-like games, and dices. In this game, the arrangement of chess pieces depends on the values on the sides of the dice. It was conceived as teaching and training how to solve endgames, problems or random arrangements, such as Fischer's chess, in various board games of logic. -
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The full source code release of the Maximus bulletin board software and related projects (including Squish and other utilities).
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Fox Oring
Fox Oring is a variation of the radio orienteering.
Fox Oring is a variation of the sport of amateur radio direction finding. Fox Oring is a timed race in which individual competitors use a topographic map and a magnetic compass to navigate through diverse, wooded terrain while searching for radio transmitters. The term is derived from the use of the term fox hunting to describe recreational radio direction finding activity and an abbreviation of the word orienteering. It is necessary to discover 5 hidden transmitters located on a 10 × 10 field in as few moves as possible. The transmitters broadcast in all 8 directions, the number on the cell indicates the number of intersecting signals. -
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Pc Calculator is a clever note and formula editor combined with an advanced and strong scientific calculator. Being an editor it is extremely user-friendly allowing all possible typing and other errors to be easily corrected and fast recalculated.