Lattice C (1984) 14 DOS

Lattice C was originally released by Lifeboat Associates in June 1982 for the IBM PC. Microsoft repacked Lattice C as "Microsoft C 2.0", however Microsoft C 3.0 and later used Microsoft's internally developed product instead. Lattice C was ported to MVS, VMS, Unix, OS/2, Amiga, Atari ST, and Sinclair.

• 2.x
• 3.x

Mace Utilities (1987) 4 Utility DOS

The Mace Utilities, from Paul Mace Software, is a suite of disk and system tools similar to the Norton Utilities and PC-Tools. Notable features in included the ability to undelete files, recover re-formatted disks, a defragmenter, and disk caching software. In 1989, Paul Mace Software Inc sold the Mace Utilities to 5th Generation Systems. After "Mace Express" in 1991, the product seemed to vanish?

• 4.x
• 5.x
• v1990

Master Graphics Presentation Pack (1987) 0 Presentations Graphics DOS

The Ashton-Tate Master Graphics Presentation Pack is a bundle of Ashton-Tate's graphics programs. This includes Chart-Master, Diagram-Master, and Sign-Master. These appear identical to the standalone versions, the only different is the inclusion of a unified menu disk.

• 1.0

MAXLLF - Maxtor Low Level Format Utility (1996) 6 DOS

MAXLLF is a utility for low level formatting IDE (PATA) hard disks drives. Technically, on newer IDE drives this simply wipes the drive, but also forces bad/weak sectors to re-map to spares. Supports CHS and LBA up to 127GB and works with any brand of drive (not just Maxtor).

• 1.1

Microsoft Access Business Information Access Program (1985) 7 Communications DOS

First released in 1985, the Microsoft Access Business Information Access Program is a telecommunications program that features VT100, VT52 and TTY terminal emulation, macros, a powerful scripting language, self-learning scripts, data import/export facilities, multiple windowed sessions, and built in support for a variety of on-line services. It competed with Procomm, Crosstalk, Relay Gold, and PC-Talk.

• 1.0x

Microsoft Diagnostics (1989) 4 DOS

Microsoft Diagnostics is a DOS-based diagnostic troubleshooting tool

• 1.x
• 3.x

Microsoft MS-DOS OEM Adaption Kit (1987) 4 DOS

The Microsoft MS-DOS OEM Adaption Kit is a set of source code and binary object files used by OEMs to add custom hardware support. Such hardware support could range from simple hardware add-ons to completely non IBM-PC hardware compatible x86 machines. By the time of MS-DOS 3.3, the market had mostly settled on generic IBM PC hardware clones that would run "vanilla" MS-DOS distributions. MS-DOS 3.2 was the first DOS version to have a true retail "vanilla" release.

• 3.x

Microsoft Multi-Tool Budget (1983) 0 Financial DOS

Microsoft Multi-Tool Budget is an easy to understand and easy to use tool that will guide you through developing accurate and reliable operating budgets for your business. It was one of several "Expert Systems" packaged by Microsoft for use with Microsoft Multiplan. The others included Microsoft Cash Plan, and Microsoft Financial Statement.

• 1.0

MicroStation (1991) 2 Graphics DOS

First released in 1985, MicroStation is a computer aided design program originally written to read and later write Interactive Graphics Design System (an early single-purpose hardware/software CAD system) design files. It was influenced by Bentley System's 1984 graphics terminal based PseudoStation software. The file format, and therefore the software, became a standard in government agencies.

• 4.0.x
• 5.0.x

Multi-Job (1984) 2 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) 1 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) 12 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) 3 Word Processor DOS

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

• 3.6
• II 1.0

Multiplan (1983) 47 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) 5 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) 6 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) 2 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

Norton Anti-Virus (1990) 14 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

Norton Utilities (1983) 113 Utility DOS

The Norton Utilities is a suite of disk and system utilities designed to enhance system performance and stability. It started off as a set of disk utilities written by Peter Norton, and later was sold by Symantec. It competed against Central Point PC Tools and the Mace Utilities. In 2003, Norton Utilities was merged with Norton SystemWorks, but later split back out.

• 2.0x
• 3.00
• 3.10
• 4.0
• 4.5
• 5.0
• 6.0
• 7.0
• 8.0

Open Systems Accounting (1985) 2 Financial DOS

Open Systems Accounting Software is a modular accounting package targeted at large businesses. It featured a high level of flexibility, as the company offered source code access for customization. It was available for DOS, XENIX, and Unix systems.

• 3.x

Orthodontic Computer Software PIMS (1987) 1 Other DOS

Orthodontic Computer Software Patient Information Management System is a custom business program specifically designed to aid in the management of orthodontic practices.

• 9.0

OS/2 Developer Connection (1995) 3 OS2

IBM's semi-often correspondence for OS/2 development.

• Vol. 8
• Vol. 12

Partition Commander (1988) 1 Utility DOS

Partition Commander is a Wizard based partition and disk utilization tool. It supports FAT, FAT32, NTFS, HPFS, and some Unix file systems.
It runs in real-mode DOS and installs from only two floppy disks. It competed directly against Partition Magic. Memory Commander, a 386 Expanded/Extended Memory Manager.

• 1.x

PartitionMagic (1995) 45 Utility DOS Windows

A tool from PowerQuest, and later Symantec, that enables manipulation of partitions through its own bootable media. PartitionMagic can shrink, grow, or move partitions without the need to backup and restore files in that partition. It supported a variety of file systems, and the core DOS-based parition tool fit on a bootable 1.44mb floppy disk. It was extremely popular, and made installing or removing multiple OSes much easier.

• 2.x
• 3.x
• 4.x