WexTech has long been on the cutting edge of help development technology, introducing features such as the Doc-To-Help Navigator, which tracks a table of contents, and the ability to embed sophisticated graphics and video inside help windows. Doc-To-Help Pro 4 continues this tradition of innovation with breakthrough technology such as HelpXtender and AnswerWorks, while still delivering the industry's only true single source tool for easy development of printed documentation, Windows Help, HTML, HTML Help, and now JavaHelp , from a single, easily maintained source.