PKZip is a DOS based utility in which you can compress and archive files. The most common and obvious use for this utility is to save disk space. Although this is the main reason for the program there are some other not so obvious uses for it. For example, say you have a file or group of files which you need to give to a friend. The selection totals 5 megabytes of space. With PKZip you can make one large zip file span over several disks. This allows you to transport the files to other systems easily. Another important use for compressing files is to speed up transfers between systems. Most ZIP files are universal, i.e., these should unzip most files made in newer versions of WinZip.