This is a wiki written in Visual Works Smalltalk. You can downloaded it from Cincom (www.cincom.com 
); it is also included in each Visual Works package.
Some notable features of this wiki engine are an upload facility, HTML support, and support for renaming pages.
UIUC uses this wiki engine; see wiki.cs.uiuc.edu , and also wiki.cs.uiuc.edu .
See original on c2.com