http://www.japheth.de/HX.htmlHX DOS-Extender is a free DOS extender with built-in Win32 PE file format support. Usually the purpose of a DOS extender is to make protected-mode features available for DOS applications. HX fully supports this goal, but goes some steps further. A Win32 API emulation layer is part of HX which allows many Win32 console applications to run in DOS. This emulation goes far beyond similiar approaches in other extenders (Borland's PowerPack, WDOSX or Phar Lab TNT). Furthermore HX implements - limited - support for windows, DirectDraw, GDI and even OpenGL graphics. This allows to run "simple" Win32 GUI apps in DOS as well.
Maybe there are some small Windows programs that will run under HX DOS-extender, that are worth including in UBCD. Just an idea, though.