About binary contents files

Binary contents files are supported with Microsoft HTML Help files (.CHM). This type of TOC is intended for extremely large projects because it reduces the amount of time it takes to open topics from the Contents tab.

Consider the following before using a binary contents file:

Tips:

  • If you need to merge keywords from different .CHM files into a master project, you can create a binary index. This kind of index combines all keywords and displays them alphabetically. It is compatible with a binary contents file. For more information, see About binary indexes.

  • If you need to distribute multiple .CHM files and consolidate the table of contents into a master project, you can add external TOC files. Note that this feature is not compatible with a binary contents file. For more information, see Adding external TOC files.