ProWiki is a wiki engine implemented in Perl. Configuration is done in subpages, so parts of a hierarchical ProWiki can have e. g. their own layout and access rights. This allows SubWikis that have their own index, recent changes and search focus.
ProWiki is an engine for very individual wiki projects. Best for wiki providers, initiators, hosts and - in general - for everybody who intends to have more than a single wiki for a single purpose. Any number of wikis (hundreds or thousands) can run from one code installation and can be updated in one place.
Because of its stability ProWiki hasn't been updated at sourceforge for a long time. The next major release is planned for mid 2010.