From iA wiki
See also: Editors
This Windows text editor exists in a various versions. The simplest "TreePad Lite", a Freeware Application. Up to TreePad Multiuser Enterprise Server, which incorporates many Enterprise Level Functions and is commercial available.
Treepad is for keeping track of any text information you may have, eg, copy pages from the web or for typing up personal notes. With Treepad users are able to access easy layout tools to organise, edit and structure text for whatever purpose they might desire.