Jim Leonard wrote: > I'm not sure if this is old news, but the MSDOS 6.0 code was leaked; a > copy should still be available at > http://www.nurs.or.jp.nyud.net:8080/~nnn/MS-DOS.6.0.Source.Code.zip for > the curious. All x86 assembler, of course. Better grab the tools too - linker asembler ect.