an idea for you to do spunky is to change the font.
you could change it to (as cookie said) Courier New (by using the /font command in plus)
but before you do that you need to read the registry for this key:
code:
HKEY_CURRENT_USER\Software\Microsoft\MSNMessenger\PerPassportSettings\<Messenger User ID>\IM FORMAT
so that you can tell what the users font was before.
the only problem with the key is that you need some way of decoding it... but im sure you would be able to do that
then after you send the message change the font back