I have been doing a lot of research lately on operating systems, but I thought I would still check in a question here.

Does anyone know of a really small operating system, like really small.

I want it to basically load up only the bare essentials so I can install a program (.exe) from cd, then set it so that program loads when the os has loaded.

I do not want to strip down XP myself or use linux, as it has to run an exe built in XP