The Link Extend/Embed add-in
1. Link Extension Customize Help Id and Help Alias.
Embed Media Files: Allow to embed video, audio and flash files into the output help system.
Nuva Script: Allow to execute the Nuva scripts in the source document.
2. Misc: Customize Help Id and Help Alias.
Link in Headings: Do not remove hyperlinks from headings.
Chm open files: Allow to open external files in CHM help.