XyWrite (1984) 2 Word Processor DOS

XyWrite is a word processor for MS-DOS and Windows modeled on the mainframe-based ATEX typesetting system. Popular with writers and editors for its speed and degree of customization, XyWrite was in its heyday the house word processor in many editorial offices, including the New York Times from 1989 to 1993. XyWrite was developed by David Erickson and marketed by XyQuest from 1982 through 1992, after which it was acquired by The Technology Group. The final version for MS-DOS was 4.18 (1993); for Windows, 4.13. An offshoot descendant of XyWrite called Nota Bene is still being actively developed.

• II Plus v1.10
• 4

ZBasic (1987) 1 DOS

ZBasic, from Zedcor, Inc., is a cross platform Basic compiler. Versions exist for MS-DOS, Apple II, Macintosh, CP/M and TRS-80.

• 4.x

Zenith MS-DOS Programmer's Utility Pack (1984) 4 DOS

The Zenith Programmer's Utility Pack for MS-DOS contains source code and compiler utilities needed for building an MS-DOS BIOS (IO.SYS file) for use with the Zenith Z-100 (not IBM hardware compatible), the Zenith Z-100 PC (IBM hardware compatible), and the Zenith Z-100 PC running in Z-100 compatibility mode.

• 2
• 3

Zenith Z-200 Diagnostics (1986) 0 DOS

These are a set of diagnostic programs for Heath/Zenith Z-200 computers.

• 1

Zenith Z-200 GW-Basic (1986) 0 DOS

This is an OEM disk of GW-Basic bundled with Zenith computers.

• 3

Zortech C++ (1989) 6 DOS

The Zortech C++ Compiler was a high performance compiler for MS-DOS, OS/2, and Windows that implemented the AT&T C++ 2.0 specifications. It competed strongly against Microsoft C and Watcom C. It later became the Symantec C++ compiler. It was also the first commercial compiler that natively supported Microsoft Windows.

• 2.x
• 3.x