Microsoft HTML Help system files

Microsoft HTML Help system files make it possible for your compiled HTML Help files (.CHM files) to work properly. These files are automatically installed and registered on your computer when you install your eHelp authoring product. End users also require these files, but they are not included in the compiled .CHM file that you copy on their systems.

Your eHelp product installation CD includes a file that automatically installs these files on end users' systems. The name of this file is HHUPD.EXE. It is located in the Redist folder on the CD.

When you run HHUPD.EXE, the following files are installed and registered on end users' systems:

File:

Description:

HH.EXE

Displays .CHM files in the viewer.

HHCTRL.OCX

HTML Help ActiveX control that provides functionality for displaying topics, the table of contents, index, full-text search and all other HTML Help components.

ITIRCL.DLL

Supports compressed .CHM files.

ITSS.DLL

Supports full-text search.

Tips:

  • If your Microsoft HTML Help system includes an online glossary, browse sequences or WebSearch, you need to install and register an ActiveX control that provides functionality for these components (it is not included with HHUPD.EXE). For details, see Installing HHActiveX.DLL.

  • If your project includes custom or third-party ActiveX controls, you need to install and register the ActiveX control. For details, see Installing ActiveX controls.