DesignCAD 3D (1987) 1 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

• 1
• 4.x

DESQView (1984) 33 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.

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

Diagraph (1986) 0 Graphics DOS

Diagraph, from Computer Support Corporation, is a program that lets users assemble presentations, charts, and graphs from a very large library of predefined symbols.

• 3.5

Direct Access (1988) 3 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.

• 4.x
• 5.x
• 1.0 (Win)

Disk Technician (1987) 1 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.

• 4.x
• Advanced 3.x
• Gold 1.x

DiskClone (1998) 1 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

DiskDoubler (1990) 3 Utility Archive MacOS

DiskDoubler is an automated file compression program for the Apple Macintosh. It does not compress the entire drive, but rather specified files. It automatically compresses and recompresses files as you use them.

• 3.x

Diskeeper (2001) 2 Utility Windows

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

• 6.0

Diskette Manager (1988) 1 Utility DOS

Diskette Manager, from BLOC publishing, previously from Lassen Software, is a software tool for the IBM PC and Tandy that inventories the contents of your floppy disks in to a database. It enables you to quickly and easily search for files or print disk labels.

• 3

DiskLock (1993) 2 Utility DOS Windows

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.

• 2.x
• 3.x

Disney Animation Studio (1992) 1 Graphics DOS

Disney Animation Studio is an animation graphics tool, that originated on the Amiga. It supports multiple VGA resolutions.

• IBM (1992)

DoubleDisk (1991) 1 Utility DOS

First released in 1989, DoubleDisk was the first real-time drive compression product for DOS. It is a fairly no-frills program and sticks to what it does best. It was relatively low cost compared to its later competitors. and Expandz! Plus

• 2.5
• 2.6

Dr Solomons Anti-Virus Toolkit (1997) 8 Utility Windows

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.

• 7.x

Drafix (1990) 2 Graphics Engineering Windows

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.

• 1.0 (Win)
• 2.x (Win)

DS Optimize (1988) 0 Utility DOS

DS OPTIMIZE is a disk defragmenter tool. It has a few more options than its competitors, and has a "fast" mode that does not protect against interruptions. This tool competed against Mace Utilities, The Norton Utilities, PC Tools, and many smaller defragmenter tools.

• 2.x

Easy Working DOS Manager (1989) 2 Utility DOS

Spinnaker Easy Working DOS Manager is a menu system and file manager for DOS. It was bundled with a number of computer systems including Packard Bell. use of a mouse. It features a customizable application menu, primitive file management, and menu options for the disk utilities commonly included with DOS. It includes built in help, and a tutorial.

• 1.5

Executive Card Manager (1986) 1 Utility Database DOS

Executive Card Manager, from Hewlett-Packard, is a Rolodex-like database for storing contact information. It features the ability to transfer information between other common applications. screen.

• 1.x

Executive Systems HOT (1986) 1 Utility DOS

HOT, from Executive Systems - the makers of XTREE, is a highly configurable menu shell for the IBM PC, with built-in "hot menus" for common DOS functions. It features a pop-up file browser, a small text editor, the ability to feed keystrokes to applications, and automatically sets up known programs found on your hard drive.

• 3.0

Expert Animator (1992) 1 Graphics DOS

Expert Animator is a budget DOS Based Animation Package. Features drawing, painting, and animating, point-and-click choreographing, generating animated electronic greeting cards, sound and music, 12 independently animated characters, and 256 color VGA support. It was published by Expert Software, who specialized in low cost budget software.

• 1992

Expert Home Design (1992) 3 Graphics DOS

Expert Home Design is a simple 2d layout program with home interior-oriented elements. It is one of a series of similar budget "design" titles published by Expert Software from RiverSoft.

• 1992

Expert Landscape Design (1992) 0 Graphics DOS

Expert Landscape Design is a simple 2d layout program with home landscape-oriented elements. It is one of a series of similar budget "design" titles published by Expert Software from RiverSoft. Design, and Expert Home Design.

• 1992

Expert Office Design (1992) 0 Graphics DOS

Expert Office Design is a simple 2d floor layout program with office-oriented elements. It is one of a series of similar budget "design" titles published by Expert Software from RiverSoft. Design, and Expert Home Design.

• 1992

Expert Paint 'n Print (1990) 2 Graphics DOS

Paint and Print, from Expert Software, is a budget drawing program for DOS.

• 1990
• 1992

Expert Utilities (1990) 0 Utility DOS

Expert Utilities is a rudimentary file manager shell for DOS. It provides an on screen directory listing and a visual command menu. It does not use the mouse.

• 1990

EZ-DOS-IT (1986) 1 Utility DOS

EZ-DOS-IT was a very low-cost low-resource multitasking program for DOS on the IBM PC and compatibles. It claimed compatibility with most popular software of the time. However, the initial 1.0 release had serious bugs, was copy protected, and was not compatible enough for many people. Although these issues were quickly fixed and copy protection removed, it earned them bad reviews.

• 4.x