Oh, there is a new version of MS DOS out: Version 6.0! Let us upgrade from version 5.0!
And MS DOS 6 comes with memmaker, to free up that conventional memory! It worked pretty well, I would say!
@root42 just make sure you keep a copy of your original config.sys and autoexec.bat somewhere on a floppy (preferably a bootable one) in case any of your drivers do not like it.