The main purpose of ZipSplitter is to simplify the task of copying large files on floppy disks. It also can be useful if you need to send large file via email. It splits file on smaller self-restoring parts, i.e. initial file can be restored without ZipSplitter. This is possible because ZipSplitter adds a very short code (4kb) to the last file, making it executable. ZipSplitter can compress file before splitting using ZIP compression, this may significantly decrease the size of the file.