MS CD Extensions (MSCDEX) (1997) 18 DOS

MSCDEX is the real-mode MS-DOS file system redirector used in conjunction with your CD-ROM driver for accessing CD drives. The CD-ROM driver, which is provided by your CD-ROM drive manufacturer, provides the hardware and protocol specific software interface to your drive. MSCDEX interfaces with this driver to present the raw CD-ROM data as a file system accessible as a DOS drive letter.

• 1.25

MS-DOS (1981) 1078 DOS

Originally 86-DOS, written by Tim Paterson of Seattle Computer Products, DOS was a rough clone of CP/M for 8086 based hardware. Microsoft purchased it and licensed it to IBM for use with Microsoft's IBM PC language products. In 1982, Microsoft began licensing DOS to other OEMs that ported it to their custom x86 hardware and IBM PC clones.

• 1.x
• 2.x
• 3.00
• 3.10
• 3.20
• 3.21
• 3.30
• 3.31
• 4.0x
• 5.0
• 6.0
• 6.20
• 6.21
• 6.22
• 7.1 (CDU)

Multi-Job (1984) 0 Utility DOS

Multi-Job is a rudimentary multitasking program for IBM PC-DOS 1.10, 2.00 and 2.10. This gives IBM PC and XT users the ability to run multiple simultaneous jobs and switch between them by pressing ALT-Keypad 1, ALT-Keypad 2, and so on. Programs running in the background must not write directly to the screen.

• 2.x

MultiLink Advanced (1986) 0 Server DOS

Multilink is a multitasking program that turns an IBM PC XT or PC AT into a multi-user, multitasking system supporting up to eight dumb terminals. A good alternative to XENIX on the PC AT.

• 4.00

MultiMate (1983) 0 Word Processor DOS

MultiMate, originally named WordMate, is a word processor designed to mimic the user interface of Wang word processing machines. It was primarily sold to large businesses, but eventually became popular with home users that were familiar with the Wang word processors. Later versions were bundled with extra third party software under the name MultiMate Advantage.

• 3.2x
• 3.3x
• 4.0

Multimate Advantage (1986) 0 Word Processor DOS

MultiMate Advantage is the high-end professional version of MultiMate, targeted at corporate users.

• 3.6
• II 1.0

Multiplan (1983) 10 Spreadsheet DOS OS2

Microsoft Multiplan was an early 8-bit spreadsheet application for CP/M and MS-DOS with ports to numerous other platforms in the early 80s. Initially it competed against VisiCalc and later Lotus 1-2-3. A companion product, Microsoft Chart, provided graphing support. Multiplan was never ported to Windows, where it was replaced with Microsoft Excel. Excel also replaced Multiplan on the Macintosh platform.

• 1.x
• 2.x
• 3.x
• 4.x

Multiscope Debuggers (1992) 0 DOS

Multiscope Debuggers for Windows is a debugging system for Windows 3.0 and 3.1 that features a GUI debugging interface, C++ debugging, a crash analyzer, execution control, advanced breakpoint capability, message spying, and remote debugging. There were also versions for DOS and OS/2.

• 2.x

Multitasking MS-DOS 4.00 (1985) 11 DOS

Multitasking "MS-DOS 4.00" is a developmental version of MS-DOS that was never released to retail consumers. It was eventually licensed to some companies for internal use. Development started in parallel during the DOS 2.x days, and was intended to be the successor to MS-DOS 3.x. It would have competed against Digital Research's Concurrent DOS.

• 4.00

Multiuser DOS (1992) 0 DOS

Digital Research's Multiuser DOS is a true multi-tasking, multi-user operating system with a DOS like environment. It is based on Concurrent CP/M, and Concurrent DOS.

• 5.x

Music Construction Set (1984) 1 DOS

Music Construction Set is a program that lets you compose "music" using a graphical user interface. It supports 3-voice sound on the IBM PCjr and Tandy 1000, and 4-voice sound via the Model 5150's cassette port!

• IBM 1984
• IBM 1987

MusicPrinter Plus (1988) 0 Media Player DOS

MusicPrinter Plus, from Temporal Acuity Products, Inc, is a musical notation program for MS-DOS. It supports CGA, EGA, and VGA video as well as MIDI playback.

• 1.1

My Advanced MailList (1991) 0 Database DOS

My Advanced MailList is a comprehensive mailing list manager database that supports a wide variety of label formats, embedded graphics, import/export with other databases, and printing POST-NET barcodes.

• 3.x (DOS)

MyBackup (1991) 0 Utility DOS

MyBackup was a low-end, low cost budget title that featured a simplistic, no-frills, easy to use backup utility. It can perform full backups, or backups of selected files. There were versions for DOS and Windows. Presumably based on Finot KeepTrack Plus.

• 1.x (DOS)

MyDataBase (1992) 3 Database DOS

MyDatabase is a small inexpensive home-oriented database program. It supports customizable entry forms, reporting, and friendly record searching.

• 1.x

myHouse (1993) 0 Graphics DOS

myHouse is a simplistic easy to use CAD program that is specifically geared towards generating home layouts. It uses 2-D editing and features the ability to render the final product in 3-D.

• 1.x

MyInvoices (1991) 1 Financial DOS

MyInvoices, from MySoftware Co., is a simplistic low-cost budget application that generates and stores invoices, tracks sales, fees, and time. It was marketed to service-related business individuals. The product is very narrow in scope, and for example, does not track inventory. "MyLabelmaker" and MyCheckbook"

• 1.1.x

MyLabelMaker (1988) 0 Publishing DOS

MyLabelMaker is a low-end budget title that aids in making labels using your printer. It is the perfect way print cards for your Rolodex, or labels for your audio cassettes!

• 1.x

MyTreasures (1991) 0 Database DOS

MyTreasures is a budget database program from My Software that is specifically designed for keeping track of collectibles. It features the ability to sort, print booklets, labels, reports, and Rolodex cards. Perfect for inventorying your baseball cards, coins, or VHS video collection.

• 1.x

NBI Legend (1988) 0 Word Processor DOS

Legend, from NBI, is a document processing program for Microsoft Windows 2.x. It primarily acts as a desktop publishing program, enabling users to lay out frames or embed graphics, but is can also act as a word processor. WordStar International where it became WordStar for Windows.

• 1.x

Netware Lite (1991) 0 Utility DOS

Netware lite was Novell's low-end networking product. It offered peer-to-peer networking up to 25 machines, used ODI network card drivers, and offered some support for talking to full Novell Netware networks. It was sometimes bundled with DR-DOS. It was followed up by Novell Personal Netware.

• 1.x

New Deal Office (1999) 6 Word Processor Spreadsheet Presentations DOS

Based on GeoWorks, New Deal Office was a graphical operating environment for DOS which later became Breadbox Ensemble. New Deal adds a Windows-95 like user interface with a task bar and start menu. New Deal Office targeted low-end 386 and 486 computers that were not up to the task of running Windows 95. It was also released in a "WebSuite" edition only includes the internet connectivity and web browsing tools.

• 3.1b
• 3.2a
• 2000

NewsMaster (1987) 0 Publishing DOS

NewsMaster, from Unison World, is a primitive low-cost desktop publishing program aimed at home users and low end PCs. It supports both dot-matrix and laser printers. Separate clipart libraries were also available, and it could make use of PrintMaster clipart.

• 1.5

NewWord (1983) 0 Word Processor DOS

NewWord is a clone of WordStar created by former MicroPro employees. It filled a gap for WordStar users as WordStar 3.3 went unupdated, and eventually became the basis for WordStar 4.0.

• 1.x

Norton Anti-Virus (1990) 2 Utility DOS Windows

Originally written by Symantec and sold as Symantec Antivrus for Macintosh, it became part of the "Norton" branded products sold by Symantec after they acquired Peter Norton Computing. Norton Anti-Virus became a popular product on DOS, Windows, and Macintosh (SAM was renamed to NAV in 1998) and battled the then-new threat of malicious software. In 2015, Symantec unified their security product lineup under the single "Norton Security" product. It was also bundled with Norton SystemWorks.

• 1.0
• 1.5
• 2.0
• Michelangelo Edition