About the Specification
Introduction
Colophon
Features
Menu
Toolbar
Navigation pane
Contents
Index
Search
Favourites
Custom tabs
Information types
Text popups
Context-sensitive help
Subsets
Samples
Merged help
Collections
Merge Files
Files
Content
Authoring
Settings
Formats
ITSF format
ITSF-4
ITSF internal file formats
CHS format
XML formats
COL format
hhcolreg.dat format
INI formats
HTML Help Project (HHP) format
HTML Help Samples (HHS) format
SFL format
Sitemap (HTML) formats
HTML Help Contents (HHC) format
HTML Help index (HHK) format
Other formats
Alias files
Text popup files
Header files
Full text search stop list file (STP)
Miscellaneous
LZX compression
LZX compression
Implementations
Optimisation
MS Office Custom tabs
HtmlHelp API
ActiveX control API
HH.exe command line
Registry locations
Undocumented HHW
Guids
Help 2
Appendices
Test suite
References
Glossary
Index
Files & Formats
Offset Tool (Excel Worksheet)
GFDL