RicarDog:
I tried send a WMA with Japanese filename to my friend through the plugin. The plugin could locate my file, but unfortunately the Japanese filename in the file transfer dialog shows garbled texts. My friend also complain that he only saw "???????" filenames without any Japanese.
Also, "Friend List" in the options page shows garbled texts.
We are both Windows XP users. I believe that Windows XP and Microsoft profucts support multi-language.