.HPJ 파일 확장자

Help project files include all the information the compiler needs to combine topic files and other elements into a single Help file. They typically include the following sections: Alias, Baggage, Buildtags, Config, Files, Map, and Windows.

HPJ is the native format used by WinHelp's Help Workshop, but is also recognized by third-party help authoring tools. RoboHelp program was originally created by eHelp, but is now owned by Adobe Systems.