PCjs Machines
Home of the original IBM PC emulator for browsers.
Microsoft MS-DOS 4.01
MS-DOS 4.01 was released in April 1989. Note that this is significantly later than PC DOS 4.01, released in August 1988.
See the PC DOS 4.00 Feature Summary for more details.
Directory listings of 360K Distribution and 720K Distribution diskettes are provided below.
[PCjs Machine "ibm5170-msdos401"]
Waiting for machine "ibm5170-msdos401" to load....
Directory of MS-DOS 4.01 (360K Disk 1)
Volume in drive A is INST V401
Directory of A:\
IO SYS* 33337 4-07-89 12:00a
MSDOS SYS* 37376 4-07-89 12:00a
AUTOEXEC BAT 39 4-07-89 12:00a
COMMAND COM 37557 4-07-89 12:00a
CONFIG SYS 96 4-07-89 12:00a
COUNTRY SYS 12806 4-07-89 12:00a
DISKCOPY COM 10396 4-07-89 12:00a
DISPLAY SYS 15692 4-07-89 12:00a
FDISK EXE 60935 4-07-89 12:00a
FORMAT COM 22875 4-07-89 12:00a
KEYB COM 14727 4-07-89 12:00a
KEYBOARD SYS 23328 4-07-89 12:00a
REPLACE EXE 19415 4-07-89 12:00a
SELECT COM 3642 4-07-89 12:00a
SELECT HLP 28695 4-07-89 12:00a
SELECT PRT 1329 4-07-89 12:00a
SYS COM 11456 4-07-89 12:00a
17 file(s) 333701 bytes
18432 bytes free
Directory of MS-DOS 4.01 (360K Disk 2)
Volume in drive A is OP#1 V401
Directory of A:\
ASSIGN COM 5753 4-07-89 12:00a
ATTRIB EXE 18263 4-07-89 12:00a
CHKDSK COM 17787 4-07-89 12:00a
COMMAND COM 37557 4-07-89 12:00a
COMP COM 9459 4-07-89 12:00a
DEBUG COM 21574 4-07-89 12:00a
DISKCOMP COM 9857 4-07-89 12:00a
EDLIN COM 14069 4-07-89 12:00a
FC EXE 15807 4-07-89 12:00a
FILESYS EXE 11129 4-07-89 12:00a
FIND EXE 5941 4-07-89 12:00a
IFSFUNC EXE 21739 4-07-89 12:00a
JOIN EXE 17813 4-07-89 12:00a
LABEL COM 4458 4-07-89 12:00a
MEM EXE 20005 4-07-89 12:00a
MORE COM 2134 4-07-89 12:00a
SHARE EXE 13424 4-07-89 12:00a
SORT EXE 5882 4-07-89 12:00a
SUBST EXE 18467 4-07-89 12:00a
TREE COM 6302 4-07-89 12:00a
XCOPY EXE 17055 4-07-89 12:00a
21 file(s) 294475 bytes
56320 bytes free
Directory of MS-DOS 4.01 (360K Disk 3)
Volume in drive A is OP#2 V401
Directory of A:\
COMMAND COM 37557 4-07-89 12:00a
EMM386 SYS 87776 4-07-89 12:00a
EXE2BIN EXE 7963 4-07-89 12:00a
GWBASIC EXE 80608 4-07-89 12:00a
LINK EXE 43988 4-07-89 12:00a
PRINT COM 14131 4-07-89 12:00a
RAMDRIVE SYS 8235 4-07-89 12:00a
README TXT 17825 4-07-89 12:00a
SMARTDRV SYS 10224 4-07-89 12:00a
XMA2EMS SYS 29211 4-07-89 12:00a
10 file(s) 337518 bytes
21504 bytes free
Directory of MS-DOS 4.01 (360K Disk 4)
Volume in drive A is OP#3 V401
Directory of A:\
IO SYS* 33337 4-07-89 12:00a
MSDOS SYS* 37376 4-07-89 12:00a
4201 CPI 6404 4-07-89 12:00a
4208 CPI 720 4-07-89 12:00a
5202 CPI 370 4-07-89 12:00a
ANSI SYS 9105 4-07-89 12:00a
APPEND EXE 11154 4-07-89 12:00a
COMMAND COM 37557 4-07-89 12:00a
COUNTRY SYS 12806 4-07-89 12:00a
DISPLAY SYS 15692 4-07-89 12:00a
DRIVER SYS 5241 4-07-89 12:00a
FASTOPEN EXE 16718 4-07-89 12:00a
GRAFTABL COM 10239 4-07-89 12:00a
GRAPHICS COM 16693 4-07-89 12:00a
GRAPHICS PRO 9397 4-07-89 12:00a
HIMEM SYS 6261 4-07-89 12:00a
KEYB COM 14727 4-07-89 12:00a
KEYBOARD SYS 23328 4-07-89 12:00a
MODE COM 22960 4-07-89 12:00a
NLSFUNC EXE 6878 4-07-89 12:00a
PRINTER SYS 18914 4-07-89 12:00a
RAMDRIVE SYS 8235 4-07-89 12:00a
RECOVER COM 10588 4-07-89 12:00a
23 file(s) 334700 bytes
15360 bytes free
Directory of MS-DOS 4.01 (360K Disk 5)
Volume in drive A is SELECT V401
Directory of A:\
BACKUP COM 36880 4-07-89 12:00a
EGA CPI 49068 4-07-89 12:00a
FORMAT COM 22875 4-07-89 12:00a
LCD CPI 10703 4-07-89 12:00a
MODE COM 22960 4-07-89 12:00a
RESTORE COM 36946 4-07-89 12:00a
SELECT DAT 22999 4-07-89 12:00a
SELECT EXE 95107 4-07-89 12:00a
XMA2EMS SYS 29211 4-07-89 12:00a
9 file(s) 326749 bytes
30720 bytes free
Directory of MS-DOS 4.01 (360K Disk 6)
Volume in drive A is SHELL V401
Directory of A:\
CHKDSK COM 17787 4-07-89 12:00a
COMMAND COM 37557 4-07-89 12:00a
DISKCOPY COM 10396 4-07-89 12:00a
DOSUTIL MEU 6660 4-07-89 12:00a
PCIBMDRV MOS 263 4-07-89 12:00a
PRINT COM 14131 4-07-89 12:00a
SHELL HLP 66527 4-07-89 12:00a
SHELL MEU 4588 4-07-89 12:00a
SHELL CLR 4406 4-07-89 12:00a
SHELLB COM 3894 4-07-89 12:00a
SHELLC EXE 153855 4-07-89 12:00a
11 file(s) 320064 bytes
36864 bytes free
Directory of MS-DOS 4.01 (720K Disk 1)
Volume in drive A is INST V401
Directory of A:\
IO SYS* 33337 4-07-89 12:00a
MSDOS SYS* 37376 4-07-89 12:00a
COMMAND COM 37557 4-07-89 12:00a
4201 CPI 6404 4-07-89 12:00a
4208 CPI 720 4-07-89 12:00a
5202 CPI 370 4-07-89 12:00a
ANSI SYS 9105 4-07-89 12:00a
AUTOEXEC BAT 39 4-07-89 12:00a
CONFIG SYS 96 4-07-89 12:00a
COUNTRY SYS 12806 4-07-89 12:00a
DISKCOPY COM 10396 4-07-89 12:00a
DISPLAY SYS 15692 4-07-89 12:00a
DRIVER SYS 5241 4-07-89 12:00a
EGA CPI 49068 4-07-89 12:00a
FASTOPEN EXE 16718 4-07-89 12:00a
FDISK EXE 60935 4-07-89 12:00a
FORMAT COM 22875 4-07-89 12:00a
GRAFTABL COM 10239 4-07-89 12:00a
GRAPHICS COM 16693 4-07-89 12:00a
GRAPHICS PRO 9397 4-07-89 12:00a
HIMEM SYS 6261 4-07-89 12:00a
KEYB COM 14727 4-07-89 12:00a
KEYBOARD SYS 23328 4-07-89 12:00a
LCD CPI 10703 4-07-89 12:00a
NLSFUNC EXE 6878 4-07-89 12:00a
PRINT COM 14131 4-07-89 12:00a
PRINTER SYS 18914 4-07-89 12:00a
RAMDRIVE SYS 8235 4-07-89 12:00a
REPLACE EXE 19415 4-07-89 12:00a
SELECT DAT 22999 4-07-89 12:00a
SELECT EXE 95107 4-07-89 12:00a
SELECT HLP 28695 4-07-89 12:00a
SELECT PRT 1329 4-07-89 12:00a
SHARE EXE 13424 4-07-89 12:00a
SMARTDRV SYS 10224 4-07-89 12:00a
SYS COM 11456 4-07-89 12:00a
XMA2EMS SYS 29211 4-07-89 12:00a
37 file(s) 690101 bytes
19456 bytes free
Directory of MS-DOS 4.01 (720K Disk 2)
Volume in drive A is OP V401
Directory of A:\
APPEND EXE 11154 4-07-89 12:00a
ASSIGN COM 5753 4-07-89 12:00a
ATTRIB EXE 18263 4-07-89 12:00a
BACKUP COM 36880 4-07-89 12:00a
CHKDSK COM 17787 4-07-89 12:00a
COMMAND COM 37557 4-07-89 12:00a
COMP COM 9459 4-07-89 12:00a
DEBUG COM 21574 4-07-89 12:00a
DISKCOMP COM 9857 4-07-89 12:00a
DISKCOPY COM 10396 4-07-89 12:00a
EDLIN COM 14069 4-07-89 12:00a
EMM386 SYS 87776 4-07-89 12:00a
EXE2BIN EXE 7963 4-07-89 12:00a
FC EXE 15807 4-07-89 12:00a
FILESYS EXE 11129 4-07-89 12:00a
FIND EXE 5941 4-07-89 12:00a
GWBASIC EXE 80608 4-07-89 12:00a
IFSFUNC EXE 21739 4-07-89 12:00a
JOIN EXE 17813 4-07-89 12:00a
LABEL COM 4458 4-07-89 12:00a
LINK EXE 43988 4-07-89 12:00a
MEM EXE 20005 4-07-89 12:00a
MODE COM 22960 4-07-89 12:00a
MORE COM 2134 4-07-89 12:00a
PRINT COM 14131 4-07-89 12:00a
RECOVER COM 10588 4-07-89 12:00a
REPLACE EXE 19415 4-07-89 12:00a
RESTORE COM 36946 4-07-89 12:00a
SORT EXE 5882 4-07-89 12:00a
SUBST EXE 18467 4-07-89 12:00a
TREE COM 6302 4-07-89 12:00a
XCOPY EXE 17055 4-07-89 12:00a
README TXT 17825 4-07-89 12:00a
33 file(s) 681681 bytes
31744 bytes free
Directory of MS-DOS 4.01 (720K Disk 3)
Volume in drive A is SHELL V401
Directory of A:\
IO SYS* 33337 4-07-89 12:00a
MSDOS SYS* 37376 4-07-89 12:00a
COMMAND COM 37557 4-07-89 12:00a
4201 CPI 6404 4-07-89 12:00a
4208 CPI 720 4-07-89 12:00a
5202 CPI 370 4-07-89 12:00a
ANSI SYS 9105 4-07-89 12:00a
BACKUP COM 36880 4-07-89 12:00a
COUNTRY SYS 12806 4-07-89 12:00a
DISKCOMP COM 9857 4-07-89 12:00a
DISKCOPY COM 10396 4-07-89 12:00a
DISPLAY SYS 15692 4-07-89 12:00a
DOSUTIL MEU 6660 4-07-89 12:00a
DRIVER SYS 5241 4-07-89 12:00a
EGA CPI 49068 4-07-89 12:00a
FORMAT COM 22875 4-07-89 12:00a
GRAFTABL COM 10239 4-07-89 12:00a
GRAPHICS COM 16693 4-07-89 12:00a
GRAPHICS PRO 9397 4-07-89 12:00a
KEYB COM 14727 4-07-89 12:00a
KEYBOARD SYS 23328 4-07-89 12:00a
LCD CPI 10703 4-07-89 12:00a
MODE COM 22960 4-07-89 12:00a
PCIBMDRV MOS 263 4-07-89 12:00a
PRINT COM 14131 4-07-89 12:00a
PRINTER SYS 18914 4-07-89 12:00a
RESTORE COM 36946 4-07-89 12:00a
SHELL CLR 4406 4-07-89 12:00a
SHELL HLP 66527 4-07-89 12:00a
SHELL MEU 4588 4-07-89 12:00a
SHELLB COM 3894 4-07-89 12:00a
SHELLC EXE 153855 4-07-89 12:00a
32 file(s) 705915 bytes
7168 bytes free