The files are ZIP-compressed for faster downloading.
To unzip them you need a software compression utility.
The unzipping utilities for different operating systems can
be downloaded from our page http://www.pmm.it/tools.htm.

PMM SOFTWARE UPDATE INSTALLATION INSTRUCTIONS:

A) Make a copy of the original diskette

B) De-compress the ZIP file, downloaded from the PMM Web site,
     in a temporary directory of your hard disk or into a diskette.

C) Select and run SETUP to install.