Open Utlity is series of unix utlity just like gnu for linux / windows
Open Utility is series of Unix utility which is currently in development.currently it has a c compiler which is based on early unix c compiler.later versions like v1 or later has in build assambler and linker.it can be used in place of gcc it is good alternative of gnu c compiler
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.
DOS/32 Advanced DOS Extender is a drop-in replacement for the DOS/4GW DOS Extender and compatibles. Being fast, small and flexible DOS/32A can be used in many environments, from embedded systems to DOS emulators, by both developers and end users alike.