xCHM is a wxWidgets-based .chm viewer. xCHM can show the contents tree if one is available, print the displayed page, change fonts faces and size, work with bookmarks, do the usual history stunts (forward, back, home), provide a searchable index and seach for text in the whole book. The search is a fast B-tree search, based on the internal $FIftiMain file found inside indexed .chm archives, and it can be customized to search in content or just the topics' titles.
acquired package info from repodata DB: repodata/1878cc60a19e65efc93d1a539275c5a6799b0acbd7796ee105712c44cae47ab4-primary.sqlite.bz2
Library for dealing with ITSS/CHM format files
CHMLIB is a library for dealing with ITSS/CHM format files. Right now, it is a very simple library, but sufficient for dealing with all of the .chm files I've come across. Due to the fairly well-designed indexing built into this particular file format, even a small library is able to gain reasonably good performance indexing into ITSS archives.