This .hnd files are used to create documentation. Made with HelpNDoc v3.0 Freeware Version. After compiling the docs into CHM/HTML format, you should do the following: * put fceux.chm to \fceu\trunk\output\ * put html version of fceux.hnd to \web\help\ * put taseditor.chm to \fceu\trunk\output\ * put html version of taseditor.hnd to \web\help\taseditor\