Norton Personal Firewall is a software product that helps protect computers against threats from the Internet at the TCP/IP protocol level.

Norton SystemWorks was a utility software suite by Symantec Corp. It integrates three of Symantec's most popular products – Norton Utilities, Norton CrashGuard and Norton AntiVirus – into one program designed to simplify solving common PC issues. Backup software was added later to high-end editions. SystemWorks was innovative in that it combined several applications into an all-in-one software for managing computer health, thus saving significant costs and time often spent on using different unrelated programs.

The Norton Utilities is a suite of disk and system utilities designed to enhance system performance and stability. It started off as a set of disk utilities written by Peter Norton, and later was sold by Symantec. It competed against Central Point PC Tools and the Mace Utilities. In 2003, Norton Utilities was merged with Norton SystemWorks, but later split back out.

Menu Planner is a rudimentary low cost application that assists users in planning diet meals. It walks users through a series of "wizard" style selections, keeps track of calories and usage, and provides users with a list of possible meal plans.

The Official Guide to Netscape Navigator, from Personal Training Systems, is an interactive training tool for teaching new users the ins and outs of using Netscape Navigator to access information on the Internet.

Omnipage is an optical character recognition (scanned image) application that can export to a number of document formats. It was often bundled with scanners.

Omnis, from the European based Blyth Software, is an easy to use multiuser relational database for Windows, MacOS, and OS/2. It was the first database ported to Microsoft Windows, which ran on Windows 1.0x.

Ontrack PowerDesk is a powerful file manager for Windows 9x/NT that includes built in archive management, file searching, and an FTP client.

Oracle Discoverer is an ad-hock reporting tool used with Oracle databases. It can view and edit data and produce reports and graphs.

Oracle Forms and Reports is a GUI application builder. It is similar to Visual Basic, but uses the PL/SQL language and integrates heavily with Oracle Server databases.

Oracle Office 2.0 is a groupware solution from Oracle, similar to Lotus Notes or WordPerfect Office (Groupware), but uses Oracle's database as a backend and includes database functionality in addition to document processing. It featured the ability to connect thousands of users at once. This software later became "Oracle Documents".

Oracle Server is an enterprise grade relational database used in many corporations. It was mainly targeted at high end server operating systems, such as IBM AIX, Sun Solaris, HP UX, Digital VMS, Linux, and Microsoft Windows NT. Oracle makes current versions of their software avaialble for download, but older versions usually disappear.

Packard Bell Navigator is an alternate user interface that replaces the Windows 3.1 Program Manager shell. It presents the content of your computer as a series of rooms.

Aldus PageMaker, later Adobe PageMaker, is a desktop publishing program for Mac and Windows. First released in 1985, PageMaker was the first desktop publishing program for the Macintosh. It was followed over a year later with the release of 1.0 for the IBM PC. The PC version was a notable application as it was one of the few rare applications which would run under Windows 1.x. PC PageMaker 1.0 bundled a runtime version of Windows. This enabled MS-DOS users who had not decided to buy Windows to run PageMaker. Aldus skipped version 2.0 on the PC to bring version number in sync with the 3.0 Mac product.

Pageview is a tool to graphically display, manipulate, and print Microsoft Word 3.0 and 4.0 for DOS documents. This was released almost two years prior to Word 1.0 for Windows.

JASC Paint Shop Pro is a simple and easy to use bit-mapped graphics editor. It supports a wide variety of file formats, and photo manipulation functions that were comparable to PhotoShop. It has good support for editing 256 color palletized images that made it ideal for editing web graphics. It was first released in 1990 for Windows 3.0 as just "Paint Shop", and early versions gained popularity through the distribution of shareware releases. It lost popularity in 2003 when 8.0 was introduced with a redesigned UI and in 2004, JASC was acquired by Corel.

PaperPort is a document management system frequently bundled with scanners. It can OCR scanned documents and convert them to PDF.

Parsons Atomic Clock is a fancy utility for synchronizing your computers clock with a time server, either via modem or to an internet time server. Features include an audio spoken clock, time drift estimates, daytime map, lunar phase events, and customizable time counters.

Partition-It, from Quarterdeck, is a partitioning tool that features a native Windows 95 32-bit application. It was later acquired by Symantec. Partition-It competed against Partition Magic.

A tool from PowerQuest, and later Symantec, that enables manipulation of partitions through its own bootable media. PartitionMagic can shrink, grow, or move partitions without the need to backup and restore files in that partition. It supported a variety of file systems, and the core DOS-based parition tool fit on a bootable 1.44mb floppy disk. It was extremely popular, and made installing or removing multiple OSes much easier.

PATHWORKS is a network client suite that enables PCs to communicate with VMS and Ultrix systems from Digital Equipment Corporation.

These disks contain Hardware and Graphics tests from 1990 for Microsoft Windows 2, and OS/2 1.x Presentation Manager.

PC Paint, from Mouse Systems Corporation, is a Macintosh MacPaint-like paint program for the PC. It was often bundled with Mouse Systems mice. Despite the similar sounding name and appearance, it is NOT related to Microsoft/ZSoft PC Paintbrush.

ZSoft PC Paintbrush is a bitmap drawing program visually similar to MacPaint. The earlier DOS versions were often bundled with Microsoft and Microsoft compatible mice, and were notable for supporting a huge variety of video adapters. It competed against Mouse Systems PC Paint (not related despite the similar name). ZSoft PC Paintbrush eventually became Microsoft Paintbrush included in Windows 3.x. For Microsoft's rebranded version see Microsoft Mouse and Microsoft Paintbrush

PC Tools, from Central Point Software, is a system and disk utility suite similar to the Norton Utilities. Central Point also produced a similar set of tools for the Apple Macintosh known as MacTools. Central Point Backup, bundled as part of PC-Tools, was also offered as a standalone product.