--- layout: page title: COMPAQ MS-DOS 3.10 permalink: /disks/pcx86/dos/compaq/3.10/ redirect_from: - /disks/pc/dos/compaq/3.10/ --- COMPAQ MS-DOS 3.10 --- This directory contains two different releases of COMPAQ MS-DOS 3.10: * [COMPAQ MS-DOS 3.10 (dated 10-31-86)](#compaq-ms-dos-310-10-31-86) * [COMPAQ MS-DOS 3.10 (dated 12-17-85)](#compaq-ms-dos-310-12-17-85) However, the older release is not a distribution copy. It is provided for historical interest only. Of particular interest here is the copy of `CEMM` that we unearthed, the first publicly available utility to make use of V86-mode on the 80386. More information about CEMM is available at the [OS/2 Museum](http://www.os2museum.com/wp/original-cemm-unearthed/). --- COMPAQ MS-DOS 3.10 (10-31-86) --- Released in 1986 by COMPAQ Computer Corp, this version of MS-DOS displays the following messages on boot: The COMPAQ Personal Computer MS-DOS Version 3.10 (C) Copyright COMPAQ Computer Corp. 1982,83,84,85 (C) Copyright Microsoft Corp. 1982,82,83,84,85 Directory listings of the two 360Kb distribution diskettes are provided below. ### Directory of COMPAQ MS-DOS 3.10 (Disk 1) Volume in drive A has no label Directory of A:\ IBMBIO COM 9728 10-31-86 12:00p IBMDOS COM 27760 10-31-86 12:00p COMMAND COM 23210 10-31-86 12:00p VDISK SYS 3420 10-31-86 12:00p ANSI SYS 1631 10-31-86 12:00p ENHDISK SYS 1569 10-31-86 12:00p CLOCK SYS 1471 10-31-86 12:00p FORMAT COM 8987 10-31-86 12:00p CHKDSK COM 9435 10-31-86 12:00p SYS COM 3823 10-31-86 12:00p DISKCOMP COM 2897 10-31-86 12:00p DISKCOPY COM 3006 10-31-86 12:00p COMP COM 2470 10-31-86 12:00p MODE COM 5481 10-31-86 12:00p FDISK COM 7200 10-31-86 12:00p BACKUP COM 5465 10-31-86 12:00p RESTORE COM 5247 10-31-86 12:00p ASSIGN COM 1509 10-31-86 12:00p SORT EXE 1664 10-31-86 12:00p FIND EXE 6403 10-31-86 12:00p MORE COM 282 10-31-86 12:00p PRINT COM 8291 10-31-86 12:00p TREE COM 1756 10-31-86 12:00p LABEL COM 1239 10-31-86 12:00p BASIC COM 1424 10-31-86 12:00p BASICA COM 1422 10-31-86 12:00p BASICA EXE 66544 10-31-86 12:00p GRAPHICS COM 7204 10-31-86 12:00p EDLIN COM 7261 10-31-86 12:00p SHARE EXE 8304 10-31-86 12:00p SELECT COM 1714 10-31-86 12:00p KEYBGR COM 12745 10-31-86 12:00p KEYBFR COM 12745 10-31-86 12:00p KEYBUK COM 12745 10-31-86 12:00p KEYBIT COM 12745 10-31-86 12:00p KEYBSP COM 12745 10-31-86 12:00p GRAFTABL COM 1130 10-31-86 12:00p DISKINIT COM 9259 10-31-86 12:00p 38 file(s) 311931 bytes Total files listed: 38 file(s) 311931 bytes 27648 bytes free ### Directory of COMPAQ MS-DOS 3.10 (Disk 2) Volume in drive A has no label Directory of A:\ SETCLOCK COM 2771 10-31-86 12:00p TAPE EXE 42512 10-31-86 12:00p BASICA COM 1422 10-31-86 12:00p SUBST EXE 16611 10-31-86 12:00p JOIN EXE 15971 10-31-86 12:00p ATTRIB EXE 15091 10-31-86 12:00p EXE2BIN EXE 2816 10-31-86 12:00p LINK EXE 38144 10-31-86 12:00p DEBUG COM 15552 10-31-86 12:00p RECOVER COM 4226 10-31-86 12:00p CMPQADAP COM 22340 10-31-86 12:00p GRAFTABL COM 1130 10-31-86 12:00p GRAFTBNO COM 1130 10-31-86 12:00p KEYBDA COM 8613 10-31-86 12:00p KEYBNO COM 8613 10-31-86 12:00p KEYBSV COM 8623 10-31-86 12:00p KEYBSU COM 8623 10-31-86 12:00p DEMO BAT 14 10-31-86 12:00p DEMO BAS 6146 10-31-86 12:00p DEMO1 BAS 15611 10-31-86 12:00p DEMO2 BAS 15629 10-31-86 12:00p DEMO3 BAS 25625 10-31-86 12:00p USA DAT 16128 10-31-86 12:00p EUROPE DAT 16008 10-31-86 12:00p INTEREST BAS 384 10-31-86 12:00p WORDS 1306 10-31-86 12:00p 26 file(s) 311039 bytes Total files listed: 26 file(s) 311039 bytes 34816 bytes free ### Directory of COMPAQ PC-DOS 3.20 Support Disk Volume in drive A has no label Directory of A:\ IBMBIO COM 9728 03-27-86 12:00p IBMDOS COM 27760 03-27-86 12:00p COMMAND COM 23210 03-27-86 12:00p DISKCOPY COM 3006 08-14-86 12:00p YCR 4 08-14-86 12:00p AUTOEXEC BAT 33 08-14-86 12:00p README CPQ 1796 08-14-86 12:00p INSTALL DOC 6790 08-14-86 12:00p DISKINIT COM 9259 08-14-86 12:00p SUPINST BAT 76 08-14-86 12:00p ENHDISK SYS 1569 08-14-86 12:00p FDISK COM 7200 08-14-86 12:00p FORMAT COM 8987 08-14-86 12:00p SYS COM 3823 08-14-86 12:00p INST1 BAT 1875 08-14-86 12:00p INST1 SCR 645 08-14-86 12:00p INST2 SCR 479 08-14-86 12:00p INSTDEL BAT 49 08-14-86 12:00p 18 file(s) 106289 bytes Total files listed: 18 file(s) 106289 bytes 245760 bytes free ### Directory of COMPAQ DESKPRO 386 (1986) Volume in drive A has no label Directory of A:\ IBMBIO COM 9728 03-27-86 12:00p IBMDOS COM 27760 03-27-86 12:00p COMMAND COM 23210 03-27-86 12:00p AUTOEXEC BAT 33 08-08-86 12:00p DISKINIT COM 9259 08-08-86 12:00p INST386 EXE 31808 08-08-86 12:00p CEMM EXE 64736 08-08-86 12:00p CEMM COM 963 08-08-86 12:00p VDISK SYS 3420 08-08-86 12:00p README CPQ 1788 08-08-86 12:00p 1 BAT 74 08-08-86 12:00p 2 BAT 73 08-08-86 12:00p 3 BAT 71 08-08-86 12:00p 4 BAT 71 08-08-86 12:00p 5 BAT 71 08-08-86 12:00p DISKINIT SCR 670 08-08-86 12:00p INST386 SCR 713 08-08-86 12:00p CEMME SCR 672 08-08-86 12:00p CEMMC SCR 397 08-08-86 12:00p VDISK SCR 567 08-08-86 12:00p 20 file(s) 176084 bytes Total files listed: 20 file(s) 176084 bytes 173056 bytes free --- COMPAQ MS-DOS 3.10 (12-17-85) --- This older 1985 release of COMPAQ MS-DOS 3.10 is from a 1.2Mb disk in the PCjs private collection. Since this disk was created for personal use, it also contains files unrelated to COMPAQ MS-DOS 3.10. A directory listing is provided [below](#directory-of-compaq-ms-dos-310-personal-disk). This release displays the following messages on boot: The COMPAQ Personal Computer MS-DOS Version 3.10 (C) Copyright COMPAQ Computer Corp. 1982,83,84,85 (C) Copyright Microsoft Corp. 1982,82,83,84,85 which is *identical* to the newer 1986 release. And most of the files are identical, so from a MS-DOS functionality standpoint, there was no difference between these releases. Also of interest, this disk contains two COMPAQ ENHDISK drivers: * ENHDISK.OLD (dated 12-17-85) * ENHDISK.SYS (dated 08-14-86) However, even though the drivers are different, they both display the same message when loaded: The COMPAQ Personal Computer ENHDISK Version 3.10 (C) Copyright COMPAQ Computer Corporation 1984, 1985 The ENHDISK.SYS file dated 08-14-86 is identical to ENHDISK.SYS dated 10-31-86 on the 3.10 distribution disks above. ### Directory of COMPAQ MS-DOS 3.10 (Personal Disk) Volume in drive A has no label Directory of A:\ IBMBIO COM 9728 12-17-85 12:00p IBMDOS COM 27760 12-17-85 12:00p COMMAND COM 23210 12-17-85 12:00p CONFIG SYS 55 10-15-87 5:52p DISKINIT COM 9179 12-17-85 12:00p VDISK SYS 2926 12-17-85 12:00p ANSI SYS 1593 12-17-85 12:00p ENHDISK SYS 1569 08-14-86 12:00p CLOCK SYS 1462 12-17-85 12:00p FORMAT COM 8987 12-17-85 12:00p CHKDSK COM 9435 12-17-85 12:00p SYS COM 3823 12-17-85 12:00p DISKCOMP COM 2897 12-17-85 12:00p DISKCOPY COM 3006 12-17-85 12:00p COMP COM 2470 12-17-85 12:00p MODE COM 4180 12-17-85 12:00p FDISK COM 7200 12-17-85 12:00p BACKUP COM 5465 12-17-85 12:00p RESTORE COM 5247 12-17-85 12:00p ASSIGN COM 1509 12-17-85 12:00p SORT EXE 1664 12-17-85 12:00p FIND EXE 6403 12-17-85 12:00p MORE COM 282 12-17-85 12:00p PRINT COM 8291 12-17-85 12:00p TREE COM 1756 12-17-85 12:00p LABEL COM 1239 12-17-85 12:00p BASIC COM 1424 12-17-85 12:00p BASICA COM 1422 12-17-85 12:00p BASICA EXE 66544 12-17-85 12:00p GRAPHICS COM 3048 12-17-85 12:00p EDLIN COM 7261 12-17-85 12:00p SHARE EXE 8304 12-17-85 12:00p ATTRIB EXE 15091 12-17-85 12:00p SELECT COM 1714 12-17-85 12:00p KEYBGR COM 8085 12-17-85 12:00p KEYBFR COM 8157 12-17-85 12:00p KEYBUK COM 7551 12-17-85 12:00p KEYBIT COM 7770 12-17-85 12:00p KEYBSP COM 8149 12-17-85 12:00p KEYBDA COM 8613 12-17-85 12:00p KEYBNO COM 8613 12-17-85 12:00p KEYBSV COM 8623 12-17-85 12:00p GRAFTBNO COM 1130 12-17-85 12:00p GRAFTABL COM 1130 12-17-85 12:00p SETCLOCK COM 2771 12-17-85 12:00p TAPE EXE 28008 12-17-85 12:00p SUBST EXE 16611 12-17-85 12:00p JOIN EXE 15971 12-17-85 12:00p EXE2BIN EXE 2816 12-17-85 12:00p LINK EXE 38144 12-17-85 12:00p DEBUG COM 15552 12-17-85 12:00p RECOVER COM 4226 12-17-85 12:00p CMPQADAP COM 21940 12-17-85 12:00p DEMO BAT 14 12-17-85 12:00p DEMO BAS 6146 12-17-85 12:00p DEMO1 BAS 15611 12-17-85 12:00p DEMO2 BAS 15629 12-17-85 12:00p DEMO3 BAS 25625 12-17-85 12:00p USA DAT 16128 12-17-85 12:00p EUROPE DAT 16008 12-17-85 12:00p INTEREST BAS 384 12-17-85 12:00p WORDS 1306 12-17-85 12:00p ENHDISK OLD 1569 12-17-85 12:00p KEYFIX COM 104 01-30-87 1:57p AUTOEXEC BAT 38 10-15-87 6:05p PCPAL EXE 63088 06-23-87 12:21p 66 file(s) 631654 bytes Total files listed: 66 file(s) 631654 bytes 564736 bytes free [Return to [COMPAQ MS-DOS Disks](/disks/pcx86/dos/compaq/)]