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.

Proteus Design Suite is a circuit design and simulation program.

PsiWin, from Psion PLC, is a tool for managing, interfacing with, and backing up PSION Personal Digital Assistants. It supports converting file formats such as Microsoft Word, Microsoft Excel, Borland dBase, Quattro Pro, WordPerfect, and Lotus Smartsuite. It also contains a Windows version of the Psion Database software.

Publish Pac is a set of drivers and a small scanning application for use with DEST scanners. It does not do much without the scanner, but it is interesting as it runs under Microsoft Windows 1. It includes a Windows 1.04 runtime, so DOS users would not have to purchase Windows.

Publish-It! is a WYSIWYG desktop publishing tool originally created by the UK based GST Software for the TOS/GEM Atari ST system. There were versions for IBM PC/GEM, Apple II, Macintosh (as "Publish-It! Easy"), and later Microsoft Windows. desktop publishing tools, it is not a full word processor, but rather imports text and focuses on high-quality formatting and printing. budget title for home users. SoftKey also released a version branded as Key Publisher

Publisher's Paintbrush is the premium version of ZSoft PC Paintbrush. It includes enhanced features targeted at desktop publishers. Features include enhanced fonts and zooming.

Publisher's TypeFoundry is a set of tools for creating and editing fonts. It includes an Outline Editor for use with vectored fonts, and a Bitmap Editor for use with bit-mapped fonts. It includes a copy of ZSoft PC Paintbrush for Windows so that fonts may be imported to or exported from a variety of sources. Its import/export tools can translate between HP LaserJet, GEM/Ventura Publisher, Windows/PageMaker, and PostScript fonts.

The PubTech File Organizer is an alternate desktop shell for Windows that attempts to mimic the Macintosh Finder. It features drive icons directly on the desktop, a Garbage icon, and folders that open in new cascaded windows with icons representing files. Applications are easily accessible from an "Applications" menu. Files and programs may be placed directly on the File Organizer desktop. In many ways, it is similar to the Windows 95 desktop, but the earlier versions work under Windows 2!

PushButton WORKS, from MicroBurst Inc., was a very low cost rudimentary integrated office suite. It includes a word processor, spread sheet, graphing program, and database. It competed with ClarisWorks, Footprint Works, and Microsoft Works for Windows.

PuTTY is a free and open-source terminal emulator, serial console and network file transfer application.