I just open a conversation window then when I close it this happens:
Exception
You are using emesene 1.6 "mate" so you're free to complain here:
http://forum.emesene.org/index.php/board,19.0.htmlCheck already existing tickets for duplicates first, please.
Traceback (most recent call last):
File "C:\Archivos de programa\emesene\plugins_base\MSNPlusSound.py", line 186, in remove_button_stop_sound
AttributeError: Sound instance has no attribute 'player'
You are on windows, that's the problem...
Sound instance has a "player" attribute ONLY if gstreamer is available, and I can't make it work as it should

...
Also, if you don't have gstremer, the plugin is useless on windows, since the actual Sound implementation only supports .wav files on windows.
I'm trying to fix this things, I need to find how to properly install gstreamer on windows (the main problem is pygst I think) and then it should work.
So, this plugin is not for windows yet...
EDIT: Installed gstreamer and pygst (now i can import them) but it still doesn't work :S, gstreamer doesn't like windows too much

. Just starting emesene throws some exceptions and then errors on the terminal when trying to reproduce anything...
EDIT2: maybe we can find another way to reproduce an mp3 files without gstreamer... but i'll post it somewhere else on the forum