FreeDOS 32 (or FD32 for short) is a 32-bit operating system under development for the IA-32 (also known as i386) platform, distributed under the terms of the GNU General Public License.

Its MultiBoot compliant minimal core aims to allow total control and full customization, providing a default protected mode environment as simple as possible: no memory protection, no paging and no multitasking, even no file system. Features can be added by loading appropriate modules or drivers.

It could be a good environment for running DPMI applications, but also for developing embedded systems based on low-cost x86 boards.

External Link

FreeDOS-32