��� are the German "Umlaute". The Turkish lanhuage has them, too.
English websites and even programs are often not prepared to their use. I seriously suspect that this can be used by hackers. <img src="/ubbthreads/images/graemlins/suspicion.gif" alt="" />
It happened to me a few times that when I wanted to define an installpath containing Umlaute or tried to use Umlaute somewhere else in a program the program made a mess of it or at least couldN#t work with them correctly.