FlexWiki was a wiki engine written primarily by David Ornstein. The code was first released in September 2004. Development ceased sometime in 2009.The engine is open source, licensed under IBM's Common Public License. FlexWiki was the third Microsoft project to be distributed via SourceForge.net, after Windows Installer XML (WiX) and Windows Template Library (WTL).FlexWiki uses .NET technology and has an integrated scripting language called WikiTalk.