Claris CAD is a computer aided design program developed in 1988 by Claris Corporation in a joint effort with Craig S. Young of Computer Aided Systems for Engineering (CASE). It was based on MacDraw II and Young's earlier CAD application, EZ-Draft. Version 1 was released in 1989 for Macintosh computers running System Software 6 or later. The initial releases were plagued with bugs, especially with the bundled plotter driver.

Claris Impact is a business graphing program that provides attractive business presentations with minimal artistic skill. It features the ability to create graphs using "Models", a guided module somewhat like a wizard.

Claris Organizer is an easy to use personal information management (PIM) program for the classic Mac OS. It integrates calendar, contacts, tasks, and notes in to one small lightweight application. It has a variety of flexible print option and can print mailing labels. It competed with the Apple Newton PDA. Claris Organizer was praised for its small size and well thought out interface. It was sold to Palm when Claris was broken up, and was used as the basis for the Palm Desktop for Mac.

ClarisDraw is a vector based drawing program and the successor to MacDraw. The name was changed partially because there was now also a Microsoft Windows port. The final release was 1.0v4.

ClarisWorks is an all-in-one Word Processor, Spreadsheet, Database, Graphics Editor, and Presentations tool from Claris. In 1998, after version 5.0.2, ClairsWorks was purchased by Apple and re-branded under the "AppleWorks" name. It is not related to the Apple II AppleWorks product.

CleanSweep, from Quarterdeck, is a utility that assists with uninstalling and removing leftover files. It also moves programs from one drive to another, to a backup that can be restored later, or to another computer.

ClickArt Personal Publisher is a simplified, Mac-like desktop publishing program. It was later purchased by Software Publishing Corporation and turned in to PFS:First Publisher, who then in turn sold it to Spinnaker Software where it became Easy Working Desktop Publisher

CO-Session is a remote communication access program that supports remote control, file transfer, automates session, and promoted itself as faster and more powerful than Carbon Copy Plus.

Colorado Backup is the software provided with HP Colorado tape drives.

ColorRIX is a simple mouse-driven painting program for DOS. It features the ability to easily work with pallets and gradients. It was bundled with some video cards, and supported many custom resolutions. VGA Paint, on standard IBM VGA hardware, supports an undocumented 360x480 256 color mode.

ColorWorks is a powerful, full-featured, photo editing program designed exclusively for OS/2. It is a native 32-bit OS/2 application and makes use of OS/2 multitasking, multithreading, and SMP capabilities. It has many features and tools that make it comparable to most other image editors.

Comic Book Creator is a graphics program that enables the user to quickly create customized comic strips based on a small predefined set of clip art and backgrounds.

COMit is a small, lightweight, and easy to use telecommunications terminal emulator for MS-DOS systems. OEMs commonly bundled it with modem hardware.

Produced by Traveling Software, the authors of LapLink, CommWorks is a suite of communications applications including CommWorks Control Center, TS Fax, TS OnLine, and Laplink.

Company Ladder is a budget oriented tool that specialized in making corporate organizational charts. It could handle large numbers of entries and print high quality graphs.

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

FastFiler, from Ziff-Davis Publishing Company and Strange Software LTD, is a rudimentary easy to use file manager shell. It was sold alongside Computer Shopper magazines. While it offers a friendlier interface than the DOS command prompt, it has fewer features and abilities than competing file managers.

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.

The Condor database is an easy to use, customizable, menu-driven relational database management system. It boasts the ability to let you design databases without programming, using only simple English, and a form and report designer. It is suitable for simple to complex tasks. It originated on CP/M-80 systems, competed against dBase II, and was ported to DOS. weight file management system, while "Condor 3" is the full featured database product. version between 1 and 3. systems, such as Zenith, HP, DEC, NEC, and more.

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.

Control Room is an all-in-one resident system information and configuration tool. It includes a number of disk utilities such as undeleting, wiping, and encrypting files. It can scan files and detect unwanted changes. Control Room can change system settings such as keyboard repeat rate and supports creating keyboard macros.

Coping With Job Stress, from Disk-Count Software Inc, is an interactive on-disk lesson about dealing with workplace job stress. It was a cheap educational budget title. The sort of thing that would sell for $6.96 at Wal-Mart. run it at work, and the box doesn't include a 3.5" disk for your new IBM PS/2.

Copy II Mac is a tool for copying copy protected disks on the Apple Macintosh computer. It also includes MacTools, an enhanced file manager with disk editing and testing abilities.

Central Point Copy II PC is a disk duplication program that can successfully copy many copy protected disks using only standard IBM PC hardware. It is generally considered the best software-only solution for duplicating such disks. "snatchit".