Originally Posted by RemoteTechs
Probably not since you and the other party are connected to the MSN IM
server. However if you were corresponding via email it would be possible to traceroute your IP
. Maybe you could install a firewall such as Comodo
(freeware) as a precautionary. You should read up about it before hand as it goes a little OB with the blocking sometimes....
If you have sent files to him, or received them, then it tend's to be a Peer to Peer connection (so he COULD get your IP address). Same goes for Webcam.
If you use certain mail clients there is a chance that they sent your IP with the message - Webmail client's don't, though.
If he did try to DoS/DDoS you, then you could just reset your router. Chances are, you have a Dynamic IP, and this would sort the problem out.
It's much more likely that he would try and DoS You. As Berry120 mentioned, a lot of people like this are script kiddies, and it's doubtful that they have Botnet's at their disposal