Finding IP addresses when chatting on YAHOO Instant Message?

i need to trace a person's IP address who is using Yahoo instant messenger to bug me.

I already know how to get IP addresses from emails, but i do not know hot to get them through YAHOO INSTANT MESSENGER.

how this can be done.

if anyone can help. I have something special for you :


X-NetStat Professional 5.53


http://www.softpedia.com/get/Network-Too...