HJSplit

HJSplit is a small but very effective little utility which will split and rejoin any file you like.Whether sharing home movies via email or trying to upload big files to services like RapidShare, you may well have suffered the inconvenience of a file that's just too big for what you're trying to do. This is where HJSplit comes in.HJSplit is a remarkably simple and easy-to-use little application which can split any file you like into parts of a predefined size, so that sharing them or storing them is made easier. It can also join split files back together and compare parts to see if they're the same.