1)   IMSpellchecker XP 1.53
IMSpellchecker XP is a powerful and ease-to-use application that adds spell-checking and auto correction functionality to your favorite Instant Messenger. The program checks spelling automatically as you type.

 2)   MessengerRank 1.0.1.6
MessengerRank is a ranking system for MSN Messenger, the add-on counts the amount of keys you type and updates your keycount to our website and shows you within our leaderboards....