Do you want to find out IP adress of your friend or foe? Here I have a way to do it. All what you need is to have that person chatting with you online through yahoo messenger. Rest what you need to do is as follows.

I consider that you are chatting with someone whom I call as victim, through yahoo messenger.

Now, follow the step mentioned below.

Step 1: Click on start, and then go to run. There, type cmd. For Vista users, you need to go to Start->All Programs->Accessories->Command Prompt

Step 2: Now type netstat -n,
Note: please make sure that you enter a space between 'netstat' and '-n'

Step 3: Here you are with a list of many IP address. Now what you have to do is to identify the IP address of the person you want from the list. For experts, see for the ip at port 5101, That's the ip address of the victim.

Step 4: Now check the below picture. Here you will see the actual format of the displayed data. On the right side you've got Foreign Address.

The content of Foreign Address is in the format,

127.0.0.1:4821

Here, 127.0.0.1 is the ip address and 4821 is the port to which this IP address is connected to my pc.

Step 5: As you've understood of port and IP Address, so now see for port 5101 in the Foreign Address list. The IP Address displayed besides it is the IP Address of your victim.

Got the IP Address. Now do what all hardcore hacking you can do with it!