File-SJ consists of two programs: File Splitter and File Joiner. File Splitter enables you to split a large file into small chunks which are easy to be sent and stored, while File Joiner allows you to join these split parts together so that the original file is restored. File-SJ is:
Very fast: File-SJ can optimize disk-cache and memory usage, this makes File-SJ 3-5 times faster than HJ-Split, WinSplit, MasterSplitter in both splitting and joining tasks. Of course, it is much faster than any compression program.
Simple: File-SJ works well on all Windows platforms. File-SJ standard doesn't need any requirement of installations or complicated DLLs. File-SJ professional has only one simple installation package for integrating File-SJ into shell context menu.
Small: Both standard and professional editions of File-SJ are small enough to fit on a floppy disk.
Easy to use: File-SJ has a friendly user-interface in English/Vietnamese. File-SJ professional can also create its shell context menus in order to perform splitting and joining tasks directly from Windows Explorer.
Powerful: File-SJ supports many features in order to keep our data more securely. You can use it to join split parts produced by HJ-Split, encrypt and transfer data without any problem.http://www.jaist.ac.jp/~hoangle/filesj/FileSJ.exe