h2incn tries to directly convert C/C++ headers to Nasm-style include files, and can be used in a makefile. It is useful if you want to use the same structures or external variable declarations in C and assembler code, and you don't want to use two separate files and update both each time you change something. It is written in a mix of C and C++ code. It currently works for simple files.
mbldr (Master Boot LoaDeR) is a boot loader which fits into the first sector of an HDD (MBR). It allows the user to choose which partition to boot and is intended to replace an MBR that comes with DOS/Windows (fdisk /mbr). It may boot OSes above the 1024th cylinder, and Linux and BSD are also supported. mbldr is based on OS Boot Select (OS-BS) project by Thomas wolfRAM.
HeavenOS is an original, alternative 32-bit operating system for Intel 80386 compatible processors. It is made with NASM (The Netwide Assembler), and is not intended to compare to modern operating systems, but to try to get the best features and discover better ways to do things. It is intended to be a simple and pratical platform for development, running with a small amount of code.
SoundTracker is a pattern-oriented music editor (similar to the DOS program 'FastTracker'). Samples are lined up on tracks and patterns which are then arranged to a song. Supported module formats are XM and MOD; the player code is the one from OpenCP. A basic sample recorder and editor is also included.
asmutils is a set of miscellaneous utilities written in assembly language, targeted on embedded systems and small distributions (e.g. installation or rescue disks). It also contains a small libc and a crypto library. It is optimized for size, memory usage, and speed, and offers fairly good functionality. The project supports Linux and the BSD family. Unixware, Solaris, and AtheOS support is in beta stage. This package also aims to provide a portable development framework, and to encourage assembly programmers to write for Linux/Unix.
Captive provides full read/write access to NTFS disk drives in the WINE way by using the original Microsoft Windows ntfs.sys driver. It emulates the required subsystems of the Microsoft Windows kernel by reusing one of the original ntoskrnl.exe, ReactOS parts, or this project's own reimplementations on a case by case basis. Involvement of the original driver files was chosen to achieve the best and unprecedented filesystem compatibility and safety.