1)   VQ CHM Decompiler 1.0
What would you do if you lost the source to your help file? With one click, the VQ CHM Decompiler extracts the topics, contents file, index file, window definitions, compiler options, map and alias sections, and, creates the HTML Help Project File.

 2)   Pocket CHM Pro 5.9
Pocket CHM Pro is an authoring tool for Help document authors, technical writers, and developers to create online help. Drag a folder containing HTML files and drop it onto Pocket CHM Pro, then click "Compile to CHM". How simple it is!