This program has been incorrectly detected. I have installed the freeware MP3Tag from
http://www.mp3tag.de/en/ but instead it claimed it was out of date and tried to install a piece of
shareware with the same name.
Yes, this may happen because the Internet is full of different small programs with the same
names. Still, I have just installed it and it was identified correctly, obviously, SI has
separated them somehow. Try refreshing the client.