### 18.14 Mapping and merging CHM files

You can create an HTML Help system that consists of multiple CHM files with interfile links. If all the files are always present, map them. On the other hand, if you are creating a modular Help system, one or more CHM files can be merged into a main CHM file at run time, based only on whether or not the other files are present.

In this section:

§18.14.1 Interlinking multiple CHM files

§18.14.2 Synchronizing TOC references to slave CHM files

§18.14.3 Putting up with a binary index for merged CHM files

§18.14.4 Merging CHM files

§18.14.5 Comparing HHW settings for stand-alone vs. merged CHMs

See also:

§16.11 Setting up a dynamic modular Help system

§18.6.3 Linking to external files from compiled HTML Help

§18.14.5 Comparing HHW settings for stand-alone vs. merged CHMs

§28.6 Linking to other files and other DITA2Go projects

Previous Topic: 18.13.4 Registering your HTML Help system for network use

Next Topic: 18.14.1 Interlinking multiple CHM files

Parent Topic: 18. Generating Microsoft HTML Help

Sibling Topics:

18.1 Understanding how DITA2Go produces HTML Help

18.2 Understanding why Unicode is not the answer

18.3 Setting up an HTML Help project

18.4 Customizing HTML Help display features

18.5 Creating pop-ups for HTML Help

18.6 Creating links and hypertext jumps in HTML Help

18.7 Creating related-topic links for HTML Help

18.8 Using secondary windows in HTML Help

18.9 Generating contents and index for HTML Help

18.10 Providing full-text search (FTS) for HTML Help

18.11 Setting up CSH for HTML Help

18.12 Generating HTML Help in non-Western languages

18.13 Compiling and testing HTML Help