File list (Check if you may need any files):
dosSource
.........\BUILD.BAT
.........\BUILD.TXT
.........\CONTRIB.TXT
.........\COPYING
.........\DIST
.........\....\AUTOEXEC.BAT
.........\....\BOOT.BIN
.........\....\HELP.EXE
.........\....\HELPFILE
.........\....\IPL.SYS
.........\....\KERNEL.EXE
.........\....\SYS.EXE
.........\HDR
.........\...\CDS.H
.........\...\CLOCK.H
.........\...\DATE.H
.........\...\DCB.H
.........\...\DEVICE.H
.........\...\DHDR.H
.........\...\DIRMATCH.H
.........\...\ERROR.H
.........\...\EXE.H
.........\...\FAT.H
.........\...\FCB.H
.........\...\FILE.H
.........\...\FNODE.H
.........\...\KBD.H
.........\...\MCB.H
.........\...\PCB.H
.........\...\PORTAB.H
.........\...\PROCESS.H
.........\...\SFT.H
.........\...\STACKS.INC
.........\...\TAIL.H
.........\...\TIME.H
.........\...\VERSION.H
.........\HISTORY.TXT
.........\LIB
.........\MAKEDIST.BAT
.........\MAKEFLOP.BAT
.........\MKBOOT.TXT
.........\readme.txt
.........\SRC
.........\...\BOOT
.........\...\....\BOOT.ASM
.........\...\....\BOOT.MAK
.........\...\COMMAND
.........\...\.......\AUTOEXEC.BAT
.........\...\.......\BATCH.C
.........\...\.......\BREAK.C
.........\...\.......\BUILD.LOG
.........\...\.......\CALL.C
.........\...\.......\CD.C
.........\...\.......\CMD.C
.........\...\.......\COMMAND.CFG
.........\...\.......\COMMAND.MAK
.........\...\.......\COPY.C
.........\...\.......\DATE.C
.........\...\.......\DEL.C
.........\...\.......\DIR.C
.........\...\.......\DOSLIB.C
.........\...\.......\ECHO.C
.........\...\.......\ENV.C
.........\...\.......\ERR.C
.........\...\.......\FOR.C
.........\...\.......\GLOBALS.H
.........\...\.......\GOTO.C
.........\...\.......\HELP.C
.........\...\.......\HELP.CFG
.........\...\.......\HELP.MAK
.........\...\.......\HELPEXE.C
.........\...\.......\HELPFILE
.........\...\.......\IF.C
.........\...\.......\LABEL.C
.........\...\.......\MKDIR.C
.........\...\.......\NEWENV.C
.........\...\.......\PATH.C
.........\...\.......\PAUSE.C
.........\...\.......\PROMPT.C
.........\...\.......\PROTO.H
.........\...\.......\REM.C
.........\...\.......\REN.C
.........\...\.......\RMDIR.C
.........\...\.......\SCAN.C
.........\...\.......\SET.C
.........\...\.......\SHIFT.C
.........\...\.......\TIME.C
.........\...\.......\TYPE.C
.........\...\.......\VER.C
.........\...\.......\VERIFY.C
.........\...\DRIVERS
.........\...\.......\CONSOLE.ASM
.........\...\.......\DEVEND.ASM
.........\...\.......\DEVICE.MAK
.........\...\.......\EOI.ASM
.........\...\.......\FLOPPY.ASM
.........\...\.......\FMEMCMP.ASM
.........\...\.......\FMEMCPY.ASM
.........\...\.......\FMEMSET.ASM