ComicRack, eComic library

Even in Italian, is now one of the best if not the best program to view comics.
Can not only read comics in various formats (7z format is also supported, for example), but also to give an assessment (with the stars) to comics on your computer and take a kind of archive of comics that are our possession (this reminds programs to organize the mp3).
In practice ComicRack is not just a viewer, but something more.
The pages of comics can also be exported in JPEG, BMP or other formats.
NOTE: My opinion reflects the fact that ComicRack has more features that performs well and is in Italian. If I were to restrict only to the simplicity and lightness of reading a comic, and choose CDisplay CDisplayEx.

ComicRack