MSN Bot, where to begin?

I want to create an MSN bot that basically monitors my incoming MSN, when one of my contacts issues a command I want to run some code and send back a text reply.

The example command format would be !command <parameters>

Basi开发者_如何学Ccally I want to use MSN normally, but have replies go out when a contact issues a command via chat, I'm running Windows 7.

I don't really mind what programming language I should use, but ideally something .net related.

Can this be done?

This looks like the best bet: http://code.google.com/p/msnp-sharp/