CompuServe Information Manager is the client software used for accessing the CompuServe service.

ComuWorks is an entry-level budget oriented integrated all-in-one office suite for Microsoft Windows 3.1. It includes a word processor, spreadsheet, database, report writer, and charting tools.

RAM Doubler is a utility for Windows 3.1 that uses advanced resource management and memory compression techniques to allow more applications to run side by side. It was designed to be simple and easy to use compared to some competing programs. It competed against similar tools such as SoftRam, Hurricane, and MagnaRam

Conner Backup Basics is a dumbed down version of Conner Backup Exec that only works with their tape drives. This software will not run at all without the appropriate tape drive attached.

Corel Office is a software bundle that includes WordPerfect and a number of other office applications. It competed unsuccessfully against Microsoft Office. This bundle started out as "Borland Office", was briefly known as "Novell PerfectOffice", then "Corel Office", and under Corel it later became "WordPerfect Office". (Not to be confused with the unrelated ~1990 groupware program, also called "WordPerfect Office")

Corel Photo Paint is a bit-mapped graphics editor optimized for photo manipulation. It competed against Adobe Photoshop and Paint Shop Pro, and was often a companion product to the vector based CorelDRAW. It includes a large number of special effects, a color management system, brushes, layers, and scanner support.

A printing program for creating over 20 types of printing projects including cards, banners, signs, certificates, calendars, brochures, business forms, labels, membership cards, coupons, tickets, bookmarks, and doorknob hangers. It uses the 32-bit CorelDRAW 6 mini-engine.

CorelDRAW is a vector based drawing and illustration program. Tools like CorelDRAW enabled desktop publishers to create professional quality illustrations that printed and scaled without distortion. It is primarily a Windows application, but was ported to Mac OS, Mac OS X, Linux, CTOS and OS/2. The earliest versions ran on Windows 2.

EZ Legal Software Corporate Secretary is a set of legal templates geared towards the operation and management of a company.

Correct Grammar is a grammar checking and analysis tool for DOS. Correct Grammar incorporates technology from the Houghton Mifflin CorrectText system.

Correct Quotes, from WordStar International, is a small database of about 5000 famous quotes. There were versions for DOS, Windows, and Macintosh. WordStar International, the producers of WordStar, also sold several other similar companion products including Correct Writing - a writing style manual, and Correct Letters - a large collection of letter templates.

Crayola Art Studio, from Micrografx, is a heavily lobotomized graphics packaged aimed at kids. It features a Bob-like "room" menu, animated characters, sound effects, a paint program that can place shapes and clipart, and several other printing programs. It is similar to, and competed against Microsoft Fine Artist.

Cricket Graph, (formerly Xerox Graph) from Cricket Software and later Computer Associates, was a best selling presentation graphics program, and a companion product to CA-Cricket Presents (formerly Xerox Presents). This program can create a variety of graphs, such as line, bar and pie charts. CA-Cricket Presents can then import the graphs in to presentations.

Cricket Presents (Formerly Xerox Presents) is a slideshow/presentation program similar to PowerPoint. You can use it to draw various kinds of graphs and charts, and it comes with a selection of vector based clipart. It can make use of graphs from Cricket Graph (Formerly Xerox Graph).

Originally released in 1982, Crosstalk XVI, from Digital Communications Associates Inc of Alpharetta, Georgia, is a powerful telecommunications program for the IBM PC with many scripting features. "XVI" means "16", and refers to the powerful new 16-bit x86 CPUs found in IBM PC's and compatibles. It was followed up by the MK 4 and Communicatior products.

DaVinci eMail, from Da Vinci Systems, is a reliable e-mail program that integrates with Novell Netware MHS and GMHS mail system backends. There were versions for Windows, DOS, and OS/2. Earlier versions ran under Windows 2.

DacEasy was the first company to offer affordable accounting software geared towards the small business. It was first released in 1985 and had gone through many DOS revisions at the time the Windows version was released.

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.

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. It featured an all-in-one database, development environment, form designer, reporting, and programming language. Its main strength was as an application develoipment environment that required minimal programming and automated/integrated many implementation and maintenance tasks. There was also a sort-of Unix version "DataEase XDOS". Initially, it competed with dBase, Condor, and R:Base.

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.

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.

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.

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.

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.

DeScribe was one of the first natively designed word processors available for OS/2. Although it was a word processor, it had many features of a desktop publishing tool.