an auto updater utility, it's widely used in a desktop application, when you got something new you want to release to all your clients, so this tool will help push all the files to all end-users, it's transparent to client, as we can see, many online games embedded this feature. but this one is a separate one, anyone could use it in his project, it's originally designed for c++ developers, but we hope it'll cover java and other language-specific applications.
