Download of CBViewer 0.8 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. This free program was originally developed by Bradley Swartout. The most popular versions among CBViewer users are 0.8 and 0.6. The default filename for the program's installer is javaw.exe. The software lies within Photo & Graphics Tools, more precisely Viewers & Editors.
From the developer:
CBViewer is a comic book viewer for comic book archives in cbz, cbr, zip, and rar formats. It reads images in ZIP, RAR or tar archives (also gzip or bzip2 compressed) as well as plain image files. The application is available for free download from sourceforge site.
You may want to check out more software, such as PP3 Private Album, DVD PixPlay Extra Image Formats Plug-In or TerraClient, which might be similar to CBViewer.