ms-dos topic
FastLZ
Small & portable byte-aligned LZ77 compression
costa
The Costa Graphical User Interface for MS-DOS and compatible systems
cobalt
Lightweight operating system based on FreeDOS
PortaDOOM
A self-contained, portable DOOM launcher and WAD collection presented as an early '90s MS-DOS disk-zine. See "Releases" below for downloads.
dd86
No longer maintained. See URL.
FDTUI
Text User Interface Shell for FreeDOS
Minibox
Small Linux commands for resource limited systems
smallmake
Public domain MAKE tool for DOS 16-bit (real mode) and 8086/88 CPU. Designed for Small C by J. Hendrix or any other languages.
JDasm
Multi purpose disassembler, format decompiler, and hex editor.