QuarkXPress was THE standard publishing software during the 1990s. However it failed to update its product line to newer technologies in a timely manager, charged insane amounts for updates or additional features that should have been built in to the software, and became very abusive to their customers. Later versions required a parallel port/ADB copy protection dongle. They lost most of their market share to Adobe InDesign.

Quarterdeck GameRunner, from Quarterdeck Corporation, is a specialized packaging of their QEMM memory management product that is specifically designed to automatically maximize the memory and speed available to known games. DOS based games of the time used a hodgepodge of memory access methods, that varied from product to product and often created conflicts. GameRunner attempts to mitigate some of this chaos by providing automatic configuration and management.

Quarterdeck InternetSuite is a commercial internet connectivity package. It includes the Quarterdeck Mosaic web browser, Quaterdeck FTP, Quarterdeck Message Center, Quarterdeck Terminal, and a dialup networking system.

Manifest is an easy to use diagnostic program that provides incredibly detailed information about DOS resource usage, loaded programs, IO devices, and memory usage including EMS, XMS, and UMB memory. It was available as a standalone program and bundled with QEMM and Deskview. Tools like this were essential for resolving compatibility problems between poorly behaved DOS programs and highly customized environments, especially in task switched or multitasking environments.

Quarterdeck Mosaic is a commercial web browser sold by the Quarterdeck corporation. At the time, it was faster, cleaner, more responsive, and more stable than Netscape. It had many new features that Netscape lacked, such as multiple child windows in a single window, a file/folder metaphor for bookmarks, a bookmark sidebar, right-click popup menus, and the ability for users to create annotations for each site. It also included a modem dialer and Quarterdeck's QWinsock. WebAuthor, WebTalk, and Quarterdeck WebServer.

Quattro Pro, initially just named "Quattro", is a spreadsheet application from Borland International. It competed against Lotus 1-2-3 and Excel, and had several advantages including tabbed sheets, and the ability to handle up to a million rows. Quattro Pro was the subject a lawsuit by Lotus, simply because because Quattro Pro copied their menu user interface, but Lotus claimed this was not allowed. This also affected The Twin and VP-Planner.

First introduced in 1992, QuickBooks from from Intuit, is an easy to use accounting and bookkeeping program targeted at small businesses and accounting novices. It features check writing, accounts payable and receivable, invoices, cash flow forecasting, and reporting. It provides more functionality than the home-user based Quicken.

Quicken, from Intuit, is a financial management tool for home users. It was first released in 1984 for DOS and later ported to Apple II, Macintosh, and Windows. Intuit also provided a more powerful product, QuickBooks, for small businesses.

Quicken Financial Planner is a step-by step program that analyzes your finances, determines how much money you need to retire, how much you should save, advise you in ways to invest, and how to track your progress.

QuickEntry is an easy to use tool for creating standalone dBase entry forms. It works with any existing dBase compatible database file. It includes a menu-driven form builder that lets you simply "draw" your form on the screen. QuickEntry runs as its own DOS program, rather than as part of a database application, such as those created by Fox & Geller's QuickCode Plus dBase code compiler.

Quick Link Fax, from Smith Micro Software, is a program for receiving and sending Faxes under DOS and Windows 3.1 with a compatible FAXModem. It competed against Delrina WinFax. On the Macintosh, Smith Micro provided MacComCenter.

QuikMenu III is an icon-based graphical menu and desktop for DOS.

Intuit QuickPay is a payroll management tool that works on top of Quicken. It Includes customizable payroll account/category names, tracking of emplyees' work, sick and vacation hours.

QuickTime is Apple's Image, Video and Audio framework. QuickTime is freely redistributable, and is provided here only as a convenience. Some applications on Winworld may require that this software be installed first.

R:Base, from Microrim and first released in 1983, was a popular relational database that competed with Ashton Tate's dBASE product. R:Base was the first relational database for the IBM PC, also notable as earlier relational databases typically required more powerful hardware. R:Base also includes a form and report generator that is optimized for the capabilities of the IBM PC and features the ability to add or remove fields without losing data or relationships.

Rand McNally New Millennium World Atlas is a world map that includes roads, geographical information, statistics, and area profiles.

Rand McNally Route Planner is an electronic atlas on a CD-ROM that enables you to plot routes to plan trips across the USA. It competed with DeLorme Street Atlas, and Microsoft Expedia Streets.

Rapid: File Manager is a Windows based file manager from Gazelle Systems, the makers of Q-DOS.

Rapidfile is an easy to use and flexible flat-file database with an integrated word processors. It supports customizable data views and reporting. It was aimed at those who need databases for simple tasks for which relational databases would be an overkill.

A console utility to extract and create RAR files.

RAWrite or RawWrite for windows is a utility for writing disk images to a floppy disk. This is needed to write many of the disk images from this site to a floppy disk.

ReadRight 2.0 is a software OCR application for IBM PC computers. It has built in support for a number of scanners, and can OCR from existing graphics files. It recognizes a number of different fonts, font sizes, supports text columns, and can output to a number of different formats. time, other OCR tools used specialized hardware accelerator cards to achieve acceptable performance.

Ready Set GO, from Manhattan Graphics Corporation, is a desktop publishing program for the Apple Macintosh. It competed against Mac Publisher, Scoop, Quark Xpress, and PageMaker.

RealType is a small commercial program that lets a computer and printer act as a typewriter. This can be useful for filling out pre-printed forms. It includes Trubo Pascal source code.

Reflection is a terminal emulator suite that connects PCs to mainframes, AS/400 and Unix hosts. Each emulator in the suite is designated by number: Reflection 1 is an HP terminal emulator, Reflection 2 is a VT320 terminal emulator, Reflection 4 is a VT340 emulator, and there are also terminal emulators for IBM 3270 and AS/400.