WikiPlex is a regular expression based wiki engine that allows developers to integrate a wiki experience into an existing .NET application seamlessly and with little effort. Built and used by the CodePlex team, WikiPlex has been thoroughly tested in real-world scenarios!
http://wikiplex.codeplex.com/
关于codeplex：
http://codeplex.codeplex.com/wikipage?title=About%20the%20CodePlex%20Site&referringTitle=CodePlex%20Documentation
好像是一个用于团队开发项目的程序