WinCHM - Creating CHM file, Make CHM file, Web Help. WinCHM Pro - Help authoring software (CHM, WebHelp, DOC, PDF) . With this powerful tool you can not only create chm file from scratch, but also convert a set of existing HTML files to a chm file.
ExtraCHM - A fully featured reader for Compiled HTML (chm) documents.
ChmSee - ChmSee is an HTML Help viewer ( chm ) for Unix/Linux.
xchm - xCHM is a cross-platform GUI front-end to chmlib, with borrowed bits from Pabs' chmdeco project.
CHM Editor - Best solution to edit CHM files
Read CHM - Read CHM is ultimate CHM (Compiled HTML Help) file reader.