As of today this is my conclusion...
- Asian fonts support is needed to view chinese characters in MSN Messenger and ICQ.
- NJStar viewer does not properly display chinese characters unless the Asian fonts support is unchecked.
- What's wierd is unchecking Asian fonts support does not make reading chinese chars in MSN Messenger go away. I found no documentation on the web that explains this behaviour, which to me seems very user unfriendly.