|CHM Format (HTML Help)|
The Compiled HTML Format (CHM) from Microsoft has been the standard for Windows help files from Windows 98. The CHM format is based on HTML files, but has the advantage over a collection of HTML files that
Any PC on which Windows 98, Windows ME, Windows 2000, Windows XP, Windows Vista or Windows 7 and Version 4.0 or above of the Internet Explorer is installed should be able to display CHM files.
With several service packs for Windows and Internet Explorer, Microsoft has changed the handling for CHM files.
If opened CHM files from Beckhoff show a structure tree but no pages, please follow the following notes.