http://hobbes.nmsu.edu/cgi-bin/h-search?key=wsedit-o.zip
Web Site
http://www.writeandset.com/english/indxf.html
"Write&Set is a full-featured wordprocessing program with hyphenation, contents creation, footnotes, index, embedding graphics and a lot of more. It is an alternative concept of word processing for people who don't like winword-like programs.
These to parts of the job are done by separate programs: WSedit is the 'editor' and WSformat the 'typesetter'. This concept simplifies word processing and enables you compiling a single document with hundreds of pages without any problems. Nevertheless, both programs are designed to work together like dialog windows in a single program: Write&Set."
Source: OS2.jp