chmviewer
 

Those who are searching like me for a way to read CHM file in Linux.

Here is details:
Download and install (in same order) below 3 rpms and you are done

chmlib-0.39-7.el5.i386.rpm
pychm-0.8.4-2fc5.i386.rpm
gnochm-0.9.11-1fc5.noarch.rpm

It will work mostly for all the platforms...

Kchmviewer sucks as it has dependency on whole lot Qt package

Keep in mind that Kchmviewer is a good choice if you happen to run KDE as you'll already have the QT libraries but not the GTK ones.

It's all relative.