BootProg

BootProg is a boot sector that loads and runs COM/EXE programs, written by Alexei Frounze

Much like GRUB, BootProg aims at being a generic bootloader, running existing file format (where most custom bootloaders involve custom binary formats) and existing partition format (FAT12/FAT16). It is tested on both floppy and hard drive.

BootProg is written in NASM and may be an interesting alternative for those who find GRUB oversized for their needs and have a working environment where FAT/EXE is more comfortable than EXT2/ELF.