PCjs Machines
Home of the original IBM PC emulator for browsers.
Microsoft MS-DOS 4.00
MS-DOS 4.00 was released in October 1988.
See the PC DOS 4.00 Feature Summary for more details.
Directory Listings of the six 360Kb distribution diskettes are provided below.
[PCjs Machine "ibm5170-msdos400"]
Waiting for machine "ibm5170-msdos400" to load....
Directory of MS-DOS 4.00 (Disk 1)
Volume in drive A has no label
Directory of A:\
IO SYS* 33321 10-06-88 12:00a
MSDOS SYS* 37376 10-06-88 12:00a
COMMAND COM 37556 10-06-88 12:00a
AUTOEXEC BAT 39 10-06-88 12:00a
CONFIG SYS 96 10-06-88 12:00a
COUNTRY SYS 12806 10-06-88 12:00a
DISKCOPY COM 10396 10-06-88 12:00a
DISPLAY SYS 15692 10-06-88 12:00a
FDISK EXE 60935 10-06-88 12:00a
FORMAT COM 22859 10-06-88 12:00a
KEYB COM 14727 10-06-88 12:00a
KEYBOARD SYS 23328 10-06-88 12:00a
REPLACE EXE 19415 10-06-88 12:00a
SELECT COM 3642 10-06-88 12:00a
SELECT HLP 28695 10-06-88 12:00a
SELECT PRT 1329 10-06-88 12:00a
SYS COM 11456 10-06-88 12:00a
17 file(s) 333668 bytes
18432 bytes free
Directory of MS-DOS 4.00 (Disk 2)
Volume in drive A has no label
Directory of A:\
COMMAND COM 37556 10-06-88 12:00a
ASSIGN COM 5753 10-06-88 12:00a
ATTRIB EXE 18263 10-06-88 12:00a
CHKDSK COM 17787 10-06-88 12:00a
COMP COM 9459 10-06-88 12:00a
DEBUG COM 21574 10-06-88 12:00a
DISKCOMP COM 9857 10-06-88 12:00a
EDLIN COM 14069 10-06-88 12:00a
FC EXE 15807 10-06-88 12:00a
FILESYS EXE 11129 10-06-88 12:00a
FIND EXE 5941 10-06-88 12:00a
IFSFUNC EXE 21739 10-06-88 12:00a
JOIN EXE 17813 10-06-88 12:00a
LABEL COM 4458 10-06-88 12:00a
MEM EXE 20005 10-06-88 12:00a
MORE COM 2134 10-06-88 12:00a
SHARE EXE 13424 10-06-88 12:00a
SORT EXE 5882 10-06-88 12:00a
SUBST EXE 18467 10-06-88 12:00a
TREE COM 6302 10-06-88 12:00a
XCOPY EXE 17055 10-06-88 12:00a
21 file(s) 294474 bytes
56320 bytes free
Directory of MS-DOS 4.00 (Disk 3)
Volume in drive A has no label
Directory of A:\
COMMAND COM 37556 10-06-88 12:00a
EMM386 SYS 87776 10-06-88 12:00a
EXE2BIN EXE 7963 10-06-88 12:00a
GWBASIC EXE 80608 10-06-88 12:00a
LINK EXE 43988 10-06-88 12:00a
PRINT COM 14131 10-06-88 12:00a
RAMDRIVE SYS 8235 10-06-88 12:00a
SMARTDRV SYS 10224 10-06-88 12:00a
XMA2EMS SYS 29211 10-06-88 12:00a
9 file(s) 319692 bytes
39936 bytes free
Directory of MS-DOS 4.00 (Disk 4)
Volume in drive A has no label
Directory of A:\
IO SYS* 33321 10-06-88 12:00a
MSDOS SYS* 37376 10-06-88 12:00a
COMMAND COM 37556 10-06-88 12:00a
ANSI SYS 9105 10-06-88 12:00a
APPEND EXE 11154 10-06-88 12:00a
COUNTRY SYS 12806 10-06-88 12:00a
DISPLAY SYS 15692 10-06-88 12:00a
DRIVER SYS 5241 10-06-88 12:00a
FASTOPEN EXE 16702 10-06-88 12:00a
GRAFTABL COM 10239 10-06-88 12:00a
GRAPHICS COM 16693 10-06-88 12:00a
GRAPHICS PRO 9397 10-06-88 12:00a
HIMEM SYS 6261 10-06-88 12:00a
KEYB COM 14727 10-06-88 12:00a
KEYBOARD SYS 23328 10-06-88 12:00a
MODE COM 22960 10-06-88 12:00a
NLSFUNC EXE 6878 10-06-88 12:00a
PRINTER SYS 18914 10-06-88 12:00a
RAMDRIVE SYS 8235 10-06-88 12:00a
RECOVER COM 10588 10-06-88 12:00a
4201 CPI 6404 10-06-88 12:00a
4208 CPI 720 10-06-88 12:00a
5202 CPI 370 10-06-88 12:00a
README TXT 14148 10-12-88 9:13p
24 file(s) 348815 bytes
1024 bytes free
Directory of MS-DOS 4.00 (Disk 5)
Volume in drive A has no label
Directory of A:\
BACKUP COM 36880 10-06-88 12:00a
EGA CPI 49068 10-06-88 12:00a
FORMAT COM 22859 10-06-88 12:00a
LCD CPI 10703 10-06-88 12:00a
MODE COM 22960 10-06-88 12:00a
RESTORE COM 36946 10-06-88 12:00a
SELECT DAT 22999 10-06-88 12:00a
SELECT EXE 95107 10-06-88 12:00a
XMA2EMS SYS 29211 10-06-88 12:00a
9 file(s) 326733 bytes
30720 bytes free
Directory of MS-DOS 4.00 (Disk 6)
Volume in drive A has no label
Directory of A:\
CHKDSK COM 17787 10-06-88 12:00a
DISKCOPY COM 10396 10-06-88 12:00a
PCIBMDRV MOS 263 10-06-88 12:00a
PRINT COM 14131 10-06-88 12:00a
SHELL CLR 4406 10-06-88 12:00a
SHELL HLP 66527 10-06-88 12:00a
SHELL MEU 4588 10-06-88 12:00a
SHELLB COM 3894 10-06-88 12:00a
SHELLC EXE 153855 10-06-88 12:00a
DOSUTIL MEU 6660 10-06-88 12:00a
COMMAND COM 37556 10-06-88 12:00a
11 file(s) 320063 bytes
36864 bytes free