UnixWare (1992) 6 Unix

Unixware is a variant of Unix from Novell that incorporated its Netware features. It was later absorbed and merged with SCO Unix, which took on the Unixware name.

• 2.x

Virtual PC (1996) 62 Virtualization MacOS Windows OS2 Mac OS X

Virtual PC started off originally as an x86 emulator for PowerPC Macintosh to run MS-DOS and Microsoft Windows. Connectix, the company that made it, was purchased by Microsoft. Virtual PC was then retooled into a virtualization tool for x86 systems. Microsoft discontinued Virtual PC in favor of a server-oriented virtualization product called Hyper-V.

• 1.x (Mac)
• 2.x (Mac)
• 3.x (Mac)
• 4.x
• 5.x
• 6.x
• 7.x

VMS (1990) 1 Other

The Virtual Memory System (VMS) is an OS originally designed for the DEC VAX line of servers. Over time, the OS grew to support Alpha and Itanium based machines. Released initially in 1977, the OS was a major competitor at the time to UNIX based machines.

• 7.x
• 8.4

Watcom C/C++ (1989) 17 DOS Windows

The Watcom C/C++ is a powerful compiler for DOS, Windows, and OS/2. Its key selling point was superior cross platform support. It supported DOS, extended DOS 32-bit, Win16, Win32, and OS/2. Notably, it was used to produce the video game DOOM as a 32-bit DOS extended program.

• 10.5
• 11.0

WebObjects Enterprise Objects (1995) 0 Other

WebObjects is an Objective-C web application server from Apple, and a server-based web application framework. It features object-orientation, database connectivity, and prototyping tools.

• 1.x

WordPerfect (1983) 140 Word Processor Unix DOS 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.

• 6.0 (Unix)
• 7.x (Unix)
• 8.x (Unix)

WordPerfect Library (1998) 0 Utility Editor PIM DOS

WordPerfect Library, introduced in 1986 and later renamed WordPerfect Office (not to be confused with Corel's Windows office suite of the same name), was a package of DOS network and stand-alone utility software for use with WordPerfect. The package included a DOS menu shell and file manager, whose macros allowed text to be moved from one program to another (for example, from WordPerfect to Calendar, and vice versa), a do-all editor, apparently that of Wordperfect 3.0, which could edit binary files as well as WordPerfect or Shell macros, calendar, and a general purpose flat file database program that could be used as the data file for a merge in WordPerfect and as a contact manager.

• 2.0

Worldgroup Server (1995) 4 Server Unix

Worldgroup Server is a bulletin board system server.

• 1.01

Xandros Linux (2003) 7 Linux

Xandros Linux is a proprietary variant of Linux that sprung up out of the proprietary Corel Linux after they sold off their Linux business.

• 2.x
• 3.x

Xenix (1984) 47 Unix

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

• OpenServer 5.x
• UnixWare 7.x