SW_TESTER  it is nice to have a thumbnail for chm files.

certain chm files do not display thumbnail. maybe because of the way the chm was created, but not sure.

having the console log have 50 entries and errors for every chm file you look at is no good. so I had to remove it. i hope the developer fixes this.  
(Version 1.1)

GENGIS  It works fast, is useful because makes navigation easier if you have many chm files.

The only problem I saw is the appearance of random characters af the end of the page preview. If I 'quick view' document_1 then quick view document_2 then quick view again document_1 these random characters change at the bottom of document_1.

For what I need it is good as is, of course I believe next feature could be page navigation.

Thanks for your software, good work with the improvements.  
(Version 1.1)

TIAGO  Excellent... and VERY needed...

Once you start using QuickLook, it's very annoying when you're presented with a file that will not show a preview but an overly enlarged ugly icon insted... This seems to solve this issue for CHM files...

Agreed, it's not a CHM reader, but that's not what it intends to be, I guess... Most CHM documents are hundreds of pages long and I don't think it's practical to read them via QuickLook, even if it's possible one day... Obviously it would be VERY good to be able to browse the pages of the documents but this is a great start indeed...  
(Version 1.1)

GCALLARIX  Does not work as a reader (you just see a preview of the first page), but this is a very good start. Thanks.  
(Version 1.0)