HelpExpert is a WYSIWYG tool to create platform independent electronic documentations. It combines all major parts of a documentation such as table of contents, alphabetical index, and the actual content in one project file. To generate documentations, an author hardly has to do more than type, point and click. HelpExpert automatically produces platform independent help sets in JavaHelp, PDF or HTML format in one step. Relying on HTML and XML the JavaHelp format can be viewed from any application or web browser. As a Java application HelpExpert can run on any platform such as Windows, Unix, Linux or Mac. An extensive tutorial is included. The Java virtual machine (VM) is required to run HelpExpert.