ExtraCHM is a free, full-featured, modern, multi-tabbed eBook reader that allows you to view Compiled HTML (chm) under Windows XP/Vista/7. ExtraCHM offers handy tools for navigation, search, and eBook reading. With ExtraChm you may view documents in a modern multi-tabbed interface, bookmark pages and text selections, improve readability by changing the size of the text even for fixed size texts, decompile chm file and convert chm to html. It has text to speech feature.