Some friends on the other side using Windows Live Messenger have custom emotes. For example, one emote was trigered using
d'ummyWhenever they sent that custom emote aMSN crashed.
The problem was the apostrophe in the emote's name, once removed it worked fine and haven't had any problems since.
So this is more or less a bug report. Foreign character's a big no no. haha!
That is all. Peace out

~Ben