Probably something which no one will ever need, but recently I came across the need to merge 2 files together.
Let’s say you have 2 files which are supposed to be identical, but each of them is MISSING a chunk from the whole file. An example is that you’re downloading 2 torrent files, one downloaded the 1st half, but the other only has the 2nd half. They both have the same file size, though.
This tool for Win32 will allow you to merge them:
DOWNLOAD HERE (585KB)
WARNING: I didn’t spend much time on it, so it’s very basic – doesn’t even have an icon or taskbar entry. In fact, it may be buggy and may crash. Who knows?