Chop

This compact program is for splitting large files (including ones larger than 4 GB) down to the byte level for easier distribution. (Or if you are a spy, you can divide a file up and even semi-encrypt it for security reasons...) It's also useful for splitting up blocks of stream data. Using either a normal window or a wizard interface, files can be split by either the number of files that you want, the maximum file size, or you can use preset common sizes for EMailing, floppies, Zips, CDs, etc... The program can Chop and UnChop files in Wizard and normal interface, and supports file time and attributes preserving, CRC to detect file corruption, command line operation and even simple encryption. In addition, if size is an absolute priority and you do not need any of the more advanced features of Chop, you can instead set Chop to create a very small BAT file which will rebuild the file without Chop. Chop is written in Assembly Language for maximum efficiency and minimum size.

Trial version Ограничения:

Starts nagging after 30 days