I started the development again. In the next few days RDKO 1.0 will be released. The planed inovations are:
* converted to C++. (100% done)
* run as a daemon, so one can setup a "patch-only" server. (80% done, only the client-side missing)
* re-design the file format to enable future extensions. (100% done)
If anyone have more suggestions, please submit them in the Feature Request tracker.
Now there's a GUI for it. No need to use the command line interface. :)
RemenDeKO is a simple file utility that can detect and fix files. Ideal when you need to fix a corrupted download, for example.
More info at http://rdko.sourceforge.net