Trying to install in a folder that contains non-latin characters will make one fail.
The curse of [ame="http://en.wikipedia.org/wiki/DBCS"]DBCS[/ame].
See orbiter吧 from a neighbouring nation for instance as you might be able to read kanji. No indigenously developed add-ons, only asking for help and no one to reply.
It seems there are more orbiter fans in China than in Japan. Some of them are making tutorial videos. I believe someday we will see more Chinese players in orbiter forum.