DanCAD 3D (1992) 1 Engineering DOS

DanCAD is a tool for producing technical line drawings and animations. It is designed for mechanical engineers to analyze and simulate 3d mechanisms, such as complex compound robotics motions. mathematical functions, animation, and PostScript printing.

• 2.5

Dashboard (1992) 5 Utility Windows

Dashboard for Windows, originally from HP, is a convenient push-button utility which gives you quick access to and maximum control over your Windows programs. and buttons for launching programs. Drag-and-drop support for printing, plotting, and faxing. Miniature screens that make it easy to work with several full-screen programs at once. An alarm clock with a built-in snooze alarm. And "At a glance" feedback to let you know which programs are running and how much memory you are using. It has a resemblance to the Unix Common Desktop Environment toolbar.

• 1.0
• 2.x
• 3.0
• 95

DataEase (1988) 1 Database DOS OS2 Windows

DataEase, from DataEase International Inc., USA., is a fast, easy to use yet powerful, menu-driven relational database development system for the IBM PC. Not copy protected.

• 4.5
• 1.0 (Win)

DataKeeper (1999) 1 Utility Windows

PowerQuest DataKeeper 3.0, formerly from HighPoint Technologies, is a powerful real-time backup program. It features the ability to continuously monitor backups, works with any removable media, compression, and registry protection.

• 3.0

DataPerfect (1993) 5 Word Processor Database DOS

DataPerfect, originally written by Lew Bastian, published through WordPerfect Corp, and later through Novell, was a fast, memory efficient, but capable relational database for DOS. WordPerfect Corp sold the product alongside their other DOS based office products, such as WordPerfect and PlanPerfect. In 1995 Novel released DataPerfect as freeware and development was continued by its original author until about 2008.

• 2.x

dBASE (1983) 85 Database DOS Windows

Ashton-Tate dBase was an early popular database management system for CP/M and MS-DOS. It was regarded as one of the killer applications for CP/M, and achieved good success. At the time of conception Ashton-Tate was a garage based company but quickly grew.

• IV v1.1
• IV v1.5
• IV v2.0
• 5.x

dBFast (1991) 1 Windows

dBFast is a dBase application compiler for DOS, the Microsoft Windows environment, and Macintosh. The DOS version was considered very limited and buggy. The Windows version was first released in 1989 for Windows 2.x, and supposedly the first "relational" database for Windows. changes. Windows specific features include support for mouse, buttons, menus, Dynamic Data Exchange, graphing, and graphics data fields.

• 1.x

Death Rally (1996) 2 DOS

Death Rally is a top-down view racing game. The object of the game is to stop your opponents winning by shooting them. To progress through the game weapons and enhancements for the cars are needed.

• 1

DECTalk PC (1993) 6 Utility DOS

DECTalk was a text to speech system used in automated telephone, radio, and TV systems. It was notably used as an artificial voice by Stephen Hawking. Most DECTalk devices were standalone serial devices, however DEC did produce an ISA expansion card for the IBM PC that contained this functionality. This software is required to operate these ISA cards.

• 4.x

DeLorme Street Atlas (1991) 1 Reference Windows

Back before MapQuest or Google Maps, people could own an entire USA road map on a CD-ROM. DeLorme Street Atlas was one of the most popular road mapping products. You can search for street names or by phone number and zoom in on local neighborhoods. enabled users to create customized maps. focused on road maps. Later it competed with Microsoft Expedia Streets and Rand-McNally Route Planner.

• 1.0
• 2.0
• 4.0
• 5.0

DeltaGraph (1992) 4 Presentations Graphics Windows

DeltaGraph, originally from DeltaPoint and later SSPS, was a powerful business and scientific statistical graphics package for the Apple Macintosh and Microsoft Windows. graphics-only packages like Excel.

• 3.x

Deluxe Scrabble for Windows (1992) 6 Windows

Based on the Scrabble word board game. Can play with up to 4 people, or a combination of computer players.

• 1.0

DeluxePaint Animation (1990) 1 Graphics DOS

DeluxePaint Animation is a raster based animation program based on the DeluxePaint painting program. It features ease of use, powerful drawing functionality, and a playback utility. As a DOS program, it was limited to 640k and 320x200 resolution in 256 colors.

• 1990

Deneba Canvas (1994) 11 Graphics Publishing Windows

Deneba Canvas is a shape based drawing and illustration program for the PC and mac. Unlike other publishing programs of the time, Canvas combined the ability to use vector graphics and raster images. It could also function as a word processor.

• 3.x
• 5.x

Derive (1994) 6 Mathematics DOS

Derive was a computer algebra and graphing system, developed as a successor to muMATH by Soft Warehouse, Inc. in Honolulu, Hawaii, now owned by Texas Instruments. Derive was implemented in muLISP, also by Soft Warehouse. The first release was in 1988 for DOS. It was discontinued on June 29, 2007 in favor of the TI-Nspire CAS. The last and final version is Derive 6.1 for Windows.

• 2.x
• 3.x

DeScribe (1991) 6 Word Processor Windows OS2

DeScribe is a word processor with some advanced features primarily for OS/2. Later, it was made available for Windows 3.1, 95, and NT.

• 3.0
• 5.0

Design It! 3-D (1995) 2 Graphics Windows MacOS

Design It! 3D is an easy to use budget 3D modeling tool. It is suitable for creating home arrangement designs, and features a 3D preview that lets you "walk" through your creation.

• 1.0

DesignCAD 2D (1988) 3 Graphics Engineering DOS

DesignCAD is a low end, but well featured, drafting program. It was sometime a companion product to DesignCAD 3D.

• 5.x

DesignCAD 3D (1987) 5 Graphics Engineering DOS

DesignCAD 3D is a powerful, easy to use, and low cost DOS based CAD program that claimed to have all of the features of the more expensive CAD programs. It competed against low-cost CAD programs such as TurboCAD, Generic CADD, and Drafix. It was sometimes sold alongside DesignCAD 2D

• 4.x

DESQView (1984) 21 Utility DOS

DESQView, from Quarterdeck, was a DOS application multi-tasker and in later versions functioned as an X client for applications on remote UNIX systems. It competed against IBM Topview. The original DESQ was just a task switcher, but subsequent versions offered preemptive multitasking of well behaved DOS programs on real-mode 8088 PCs. It gained popularity when DESQView 386 added virtual x86 support. This enabled the ability to multi task many poorly behaved programs, and was often used on BBSes due to its excellent COM port handling. It was later overtaken by OS/2 and Windows.

• DESQView X 1.x
• 2.x
• DESQView X 2.x

Digitalk Smalltalk/V (1986) 7 Windows

Smalltalk/V was the first widely available version of Smalltalk. It was developed by Digitalk in 1986 for DOS, Macintosh, and later Windows.

• 2.x (Win)

Dilbert Break A Day (1997) 0 Novelty Windows MacOS

Released in 1997 by DayBreak Software, Break A Day is a calendar that shows a different Dilbert comic every day. Includes a 16-bit Windows 3.1 version, 32-bit Windows 9x/NT version, and a Mac version.

• 1

Direct Access (1988) 6 Utility DOS Windows

Direct Access is an easy to use menuing program designed to simplify access to applications on systems with many programs loaded on the hard drive. It is customizable, includes screen blanking, and includes password protection and usage logging. Later versions also detect common programs already installed on the hard disk.

• 5.x
• 1.0 (Win)

Disk Technician (1987) 4 Utility DOS

Disk Technician, from Prime Solutions Inc., is a hard disk utility and surface monitor. It contains an interleave adjuster and pattern tester similar to Spinrite. The Gold version also includes a defragmenter and disk-level virus protection.

• Gold 1.x

DiskClone (1998) 2 Utility DOS

DiskClone, from Quarterdeck, is a simple, professional, small, powerful, and easy to use hard disk cloning tool. It can copy a drive to another internal or external drive of different sizes. It can be used as a backup, or a migration tool to a new drive. It all fits on a single floppy disk. "Corporate" editions.

• 1.0