Hi,

Programs often consist of more than one file and possibly some directories.
They are often combined into a single file so that people do not have to
download each file individually.  The "zip" format is one method of doing
this.  As a bonus the files are "compressed" so that the combined file is
smaller than the separate files making for faster download times.  The
program which is used for zipping and unzipping is called PKZip and can be
found at:

http://www.pkware.com/pkzip_win.html

I'm not sure of the shareware restrictions on this program.

Bye,
Hans Mikelson