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.

DesignView is a 2d drawing and CAD program, designed to functionally refine smaller components for use in larger CAD drawings. It was praised for its ability to include rules and programmatic manipulation rather than just being a drawing program. DesignView features equation solving, mass property synthesis, user defined functions, and animation. Supports reading Autocad, Versacad, and Cadkey files.

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.

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.

Diskeeper is a professional disk defragmenting tool with versions for both 9x and NT. It includes features such as scheduling and background defragmentation.

DiskLock, From Fifth Generation Systems, and later from Symantec as Norton DiskLock, is a data security tool that can lock a hard disk or individual files or directories so that it requires a password to access any data. It can also log activity to detect unauthorized access attempts. It also features the ability to lock the system after an idle usage period. There were versions for PC and Mac.

Dr Solomon's Antivirus was a top rated commercial virus scanning suite. There were versions for DOS, Windows 3.1, 95, 98, Novell, SCO Unix, Solaris, and OS/2.

Drafix is a powerful, high performance, and feature rich 2-dimensional computer aided design tool. Despite being a 2-D CAD program, it had many features of high end 3-D CAD software, and competed directly with AutoCAD. Drafix was first was fist released in 1986 for DOS, and was the first professional CAD program released for Microsoft Windows.

Dragnet, from Access Softek, is an advanced but easy to use file search utility that features the use of GUI input, Boolean operators, synonyms, pattern file definitions, multitasking, and the ability to search across multiple files. The original version is designed for Windows 1.x.

DVMpeg, from Darim Vision Co., Ltd, is an MPEG encoder that can convert Windows AVI files to MPEG.

Easy Chefs One Million Recipes, from American Cooking Resources, is one big multimedia CD that contains a huge card file of food recipes. It literally has over a million recipes stored in its searchable database.

Easy Working for Windows Word Processor, from Spinnaker Software, is a budget word processor for Microsoft Windows. It offers basic text editing and formatting, but not much else.

EasyDesktop, from MicroSeconds International, is an alternative desktop shell for Microsoft Windows that uses a more compact text-based file list and integrates its own file manager.

Microsoft Encarta was a home oriented interactive encyclopedia that was often sold with new OEM machines. Unlike a paper encyclopedia, Encarta took full advantage of being on a computer, with updates from the Internet, sound clips and movies, interactive charts and games, and good navigation.

Encarta Virtual Globe is a companion multimedia product to Microsoft Encarta, and was also included on the Encarta Reference Suite DVD. Microsoft Encarta Virtual Globe contains detailed geographical and topographical maps and information, a huge database of places, geography games, satellite photographs, and 3D "flights" over major landmarks.

Encore, from Passport Designs, is a music program that originated on the Atari ST in 1984. It enables writing and editing music using traditional notation format. It can import and export to a number of sources and supports MIDI playback. enable items in the musical score to be added and edited using the mouse.

The Energizer Bunny was a hilarious marketing gimmick started by Energizer in the late 1980s. It spawned many parodies as well as appearances in games and software. The Energizer Bunny screen saveris a set of screen saver modules that feature appearances by the famous drum-beating pink bunny, complete with multimedia sound.

Eudora Pro, originally developed at the University of Illinois, was a very popular commercial POP 3/SMTP internet e-mail client for Microsoft Windows and Macintosh. Qualcomm also produced a free, less featured version called Eudora Light.

Expedia Streets, from Microsoft, is a multimedia street atlas similar to Delorme Street Atlas. It competed with DeLorme Street Atlas, and Rand McNally Route Planner.

Dream Interpreter is a program for recording and analyzing dreams. It contains a large database of dream symbols and interpretations and can analyze trends over time.

Expert Stationery Shop is a budget-oriented graphics program that specialized in quickly and easily creating glitzy looking business related documents, such as letterhead, envelopes, fax cover sheets, business cards, signs, and awards. It features specialized clipart, extra TrueType fonts, extra text effects, and a logo creation tool.

Expert Typing for Windows is a budget Windows based typing tutor sold by Expert Software.

ExpressFax is a program, from the makers of WordPerfect, designed to send and receive faxes. It includes a phone book and optical character recognition.

Expresso is a budget Personal Information Manager from Berkeley Systems, makers of the After Dark Screensaver series. Expresso provides modules for managing Calendars, Notes, Address Books, and To-Do Lists. It also includes a selection of colorful visual themes and alarms with sound effects.

EZ-Tape, from Irwin Magnetic, was backup system for their popular line of tape drives. Some of these tape drives were OEMed under other product names. For example, the "IBM PS/2 Internal Tape Backup Unit" is actually an Irwin manufactured drive, and included EZ-Tape.