HJSplit is a free tool to split and recombine files as large as 100+ gigabytes. The Freebyte program comes with four easy to use features: Split, Join, Compare and Checksum. When splitting a file you can specify how small or large the parts should be.
The size ranges from kilobytes (kb) to gigabytes (gb) to fit the individual parts on floppy disks, CD/DVDs, USB Drives and other portable storage, or send them via email or upload to an online webspace. HJSplit Join recombines previously split files to re-create a file of the same size as the original. Compare takes two files and checks if they are equal in length and if bits are in the same position. Finally Cecksum generates a MD5 checksum that can for example be shared with the recipient of your split files to confirm that they have not changed. HJSplit runs without installation from a tiny file. Freebyte also offers a Windows 3.x and MS-DOS version. Thus files can be split and recombined with HJSplit across different operating systems, e.g. Windows XP and MS-DOS.