Yesterday I was doing some C# programming at home and needed to view the API help file for a library I was working with. The help files was a Microsoft Compiler HTML Help file, which Windows has built in support for, but Mac OS X doesn't.

Luckily I found a couple of CHM viewers for OS X on the Internet:

• xCHM
• Chmox

Although Chmox looks nicer, xCHM is the one I chose to go with as it shows both the index and the contents of the CHM file, whereas Chmox only shows the contents, and provides no means of searching.