Maybe he just wants to "tinker" with his install. I am like that.
I would be interested in finding out how small of an install I could manage, just out of curiosity.
I vaguely recall getting an install of 98 down to ~50-60mb without the use win98 lite AND I could still surf the web. It was unstable but kinda fun to experiment with.
(I just went in and systematically moved wasn't important looking. to a folder outside of windows. If it failed to boot I just moved the file back.)