The 1.0.1 version of ZipMounter for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X is an intellectual property of Etresoft. We recommend checking the downloaded files with any free antivirus. The program lies within System Tools, more precisely File Compression.
From the developer:
ZipMounter is an open source and very easy to use droplet app which will allow you to quickly mount any ZIP archive on your Mac as a volume.
Usage:
Install ZipMounter by copying it to your hard drive. Invoke ZipMounter by selecting dragging a Zip file onto the application icon or by right/Command/⌘-clicking on a Zip file and selecting Open with... > ZipMounter.
You may want to check out more software for Mac, such as ZipMounterLite, which might be similar to ZipMounter.