ironically it turned up an early thread in this forum, even though the forum search didn't find anything, i might not have been using the right terms..
Most of the extra 1K isn't really "bloat', as it's given up after the command line's been parsed. There's some stuff in there for tweaking the display as well as configuring for boot-type games.
The "official" doc file is in WS2000 format, something I haven't had on a system for about 18 years. But the attached version will give you the gist of things.