Trace IP address of someone or friends in Facebook chat, google chat-Gtalk, Messengers: -

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>>Open Start
>>Select Run
>>Type CMD

Now chat with your friend, and in CMD write "NETSTAT" and it will show
all the IP Address connected with your IP Address.

Next Step is to trace thet user using his/her IP address
To do so, use any IP tracer services like
http://www.ip-adress.com/ip_tracer/ and paste the IP address in the box
that says "lookup this ip or website" and it will show you the location
of the user.