This is a simple, easy to install, self contained script for reading the contents of zip files.
Because of their central directory structure, zip files have the property of being random access archives, making them better suited to this particular task then tar files would be.
Installation is easy, just unpack some place, move the index.cgi and
it's documentation to your intranet server, set it's permissions to 755
and attempt to read the included zip files contents.
Alternatively, you might unpack the enclosed zip file for further installation directions (if the defaults don't work) You may need to tell it where the mime.types file is located and specify the commands for unzipping and listing the contents of zip files.
The settings are also documented in index.cgi itself, should you need to change anything. (it's easy, you'll see what I mean)