Sidekick (1984) 26 Utility PIM OS2

Borland Sidekick is a DOS based PIM (Personal Information Manager) and one of the first widely-used TSR (terminate and stay resident) programs. The key feature of Sidekick was that one could use Sidekick's utilities while using most other MS-DOS applications. This was important because MS-DOS had no built-in multi-tasking or task switching capabilities.

• 1.0 for OS/2

Stacker (1991) 18 Utility Archive OS2

Stacker, from Stack Electronics, was a hard drive compression tool. It was wildly popular until Microsoft virtually eliminated the third party market for this by including their own drive compression tool with MS-DOS 6. and Expandz! Plus.

• 1.0 (OS/2)
• 4.0 (OS/2)

Stardock Object Desktop (1996) 5 Utility OS2

Object Desktop is a set of utilities for OS/2 power users. It provides a number of visual enhancements, define hotkeys, an improved editor, desktop configuration backup, archive management, system help advisors, and system backup.

• 1.5.x

StarOffice (1995) 60 Word Processor Windows OS2 Unix Linux

StarOffice, initially from Star Division GmbH is an office suite containing a word processor, spreadsheet, drawing program, and graphing program. It was later owned by Sun Microsystems and then Oracle, and spawned the open source OpenOffice and LibreOffice. Also see the earlier StarWriter

• 3.0
• 3.1
• 6.0

StarWriter (1994) 2 Word Processor OS2

StarWriter is a powerful word processor for OS/2 and Windows. It was one of the applications that eventually merged in to StarOffice. It was released by the German company StarDivision.

• 2.0

Thunderbird (2005) 1 Communications Windows Linux Mac OS X

Thunderbird is an e-mail client based on the integrated Netscape/Mozilla e-mail client. With the release Firefox, it was spun off in to a separate standalone product. It includes the same HTML rendering engine used in Firefox to render HTML formatted messages.

• 1.x
• 2.x

WordPerfect (1983) 147 Word Processor OS2 Unix Linux

During the late 1980's, WordPerfect was THE standard word processor for DOS based PCs in big business. Under DOS, it competed mostly against Wordstar. WordPerfect for Windows enjoyed some success in the early Windows environments, but was quickly displaced by Microsoft Word for Windows. Later Windows versions were part of Borland Office/Novell PerfectOffice/Corel Office/Corel WordPerfect Office.

• 5.0 (OS/2)
• 5.2 (OS/2)
• 8.x (Unix)

Xenix (1984) 85 Linux

Xenix was the variant of UNIX originally published by Microsoft, later sold to SCO. It added a variety of technical enhancements over System V Unix, including a menu-driven business shell. It was ported to many different platforms from a PDP-11 including the Altos 8600 (First x86 port), IBM PC, Intel System 86, TRS-80 Model 16, SCP Gazelle II, and Apple Lisa. The Xenix Software Development System, Microsoft Multiplan 2.x and Microsoft Multiplan 3.x, Microsoft Word 3.0 and Microsoft Word 5.x, and FoxBase Plus 1.00

• IBM PC 2.00