Popcorn desktop is a set of TSR utilities similar to Borland Sidekick. It includes a text editor, a calculator, and a calendar. It can copy information from currently running programs displayed on the screen.

Popcorn Misspeller's Dictionary, from Popcorn Software, is a TSR program with a popup list of commonly misspelled words. You may find a word by typing it, but it does not make corrective suggestions.

Powerbase is a set of utilities distributed by PC World

PowerDVD is a DVD player program bundled with some CD-ROM drives.

PowerMenu was a popular shareware menu program and file manager for DOS. It was very compact in size and very responsive, even on a 4.77mhz PC/XT. It supports four menu levels, customizable colors, and fits on a 360k floppy disk. It unloads itself when running programs, so applications can use all available RAM.

Microsoft PowerPoint is a graphical presentation tool that is today part of Microsoft Office. Prior to its acquisition by Microsoft, it was known as "Presenter" from Forethought Inc. These are the standalone versions. For the Office bundled versions, see Microsoft Office.

PowerSOFT Super Utility is a disk editing utility that was originally developed for the TRS-80. It includes disk mapping, hexadecimal sector editing, directory editing, and sector copying.

Powersoft PowerViewer is a powerful business graphing and reporting tool that includes the ability to connect to a wide variety of databases. The modern bullshit term for this kind of software is "Business Intelligence" software. It features the ability to let users quickly create complex yet good looking presentation-quality reports from data in a database. PowerViewer was sold alongside Powersoft PowerBuilder.

PractiWord is an easy to use word processor that works similarly to WordStar and integrates with PractiCorp's PractiBase database and PractiCalc III spreadsheet. It was lower cost than WordStar and was primarily targeted at home users and small businesses. Supports the IBM PCJr.

Presentation Express, from Business & Professional Software, Inc, is a graphing program designed for use with slide recorders. It is related to Business & Professional Software's "35mm Express", but adds improved color handling, chart formats, and fonts.

Presentation Server, from Citrix, is an application virtualization product that allows users to connect to applications on Windows Server remotely.

Presentation Task Force, from New Vision Technologies, is a collection of clipart for DOS and Windows. It was highly rated by PC Magazine.

Pressworks is an entry level desktop publishing application for 16-bit Microsoft Windows 3.1. name "Pressworks" in the UK. In the US market, it was distributed by Timeworks under the name Publish-it for Windows.

Print Magic is a sign, card, and banner printing program, similar to Print Master. Compared to others of the time, its functionality is rather crude, lacking previews or undo.

Print Master was another sign and banner creation program similar to The Print Shop. The earlier version got in to trouble for looking too much like the Print Shop.

PrintPower is a tool for creating greeting cards, signs, banners, and calendars, similar to The Print Shop. It was a rather clunky low-end bottom of the bargain-barrel budget title. The later "Pro" version seems to give it a more Mac-like user interface.

ProCalc 3d is a low-cost spreadsheet created by Formalsoft and sold by Parsons Technology.

ProComm, from Datastorm technologies, was a powerful and very popular telecommunications program for DOS and Windows. TERMULATOR, written to fill the gap left by shareware PC-Talk when its author died. protocols for uploading and downloading, and automatic redial. The commercial "ProComm Plus" includes a scripting language, more terminal types, additional file transfer protocols, context sensitive help, support for 8 COM ports, and a professionally written manual (telecommunications)](/product/microsoft_access_business_information_access_program), Crosstalk, Relay Gold, and PFS Access. Later, it competed with QModem and Telemate.

Prodigy was an online service that offered on-line news, forums, stock information, games, banking, online shopping, and e-mail. Its primary feature was that it used a fully graphical user interface, however it was limited to very low resolutions and slow dial-up speeds, making it impractical for displaying photographs or detailed graphical documents.

Professional Write, from Software Publishing Corporation, was a popular word processor for home use during the late 80s and early 90s. It features an easy to use menu system and an integrated spell checker. Professional Write was a revamp and replacement for SPC's earlier PFS:Write.

Professor DOS, from INDIVIDUAL Software, is a friendly interactive training guide that helps you learn how to use DOS on your IBM PC or compatible computer.

Professor WINDOWS, from INDIVIDUAL Software Incorporated, was a best selling Training program for and about Microsoft Windows 3.0. There was also a "Professor DOS"

Project Manager Workbench, later just called Project Workbench, is a powerful, full featured, professional project management program for DOS. At the time, it was also very pricey.

Prokey is a DOS TSR macro recording and playback program. It adds lotus-style menus to applications, lets users create their own help messages, can copy text from the screen, remembers the last 300 keystrokes, and supports timed reminder alerts.

Protec is a DOS menu shell that restricts access of files and programs to specific users. It hides files so they can not be easily seen by unauthorized users, includes encryption tools, and features access audit logging.