http://bugs.winehq.org/show_bug.cgi?id=23622
--- Comment #16 from wineatic test051102@hotmail.com 2011-01-07 07:37:50 CST --- There was only a small period of time during which Wine was able to display my .chm file (not the test file attached to the bug) correctly including images and links! The last good version of Wine was 1.2 RC5. Previous versions suffered from similar problems like up to date releases.
Taking into account that I reported this bug about 6 months ago and that nobody even dared to think about it, one can conclude, that this bug obviously has no priority. Maybe we have to wait for years until simple .chm files are working in Wine. This is pretty annoying because without such a basic feature I will not be able to advertise my application as beeing compatible with Wine.