ZipSplitter allows you to split large files into smaller self-restoring parts. Self-restoring means that the initial file can be restored without it. This is necessary, for example, if you need to send large file via email. Or if you need to copy file on the diskettes, while file is larger than the disk size. Of course, you can use WinZip's multivolume feature, but in this case you must rewrite all the diskettes on any error, and you must have WinZip on the computer where these diskettes will be read. It is very easy to use - just select "Split with ZipSplitter" from file menu.