Whenever talking about making the classic and enduring CHM format of eBook/user manual for all kinds of software/hardware products, we have to mention the well-known WinCHM Pro. It not only allows user to make helpfile start by editing HTML files, also supports directly convert any existing scattered HTML files into an integrated CHM file.

htm2chm is a very practical CHM file (Microsoft Compiled HTML Help) creator, compiler, editor and decompiler I found a few years ago when searched "convert flash into CHM" in Google. At that time, I wanted to pack a flash file along with its related documents (HTML, TXT, ZIP, etc) as a CHM format e-book, so that I can take it anywhere.