Chat in MS-DOS using IP address

It is easy and simple trick.  We can chat using MS-DOS(we have did this as college experiment in network lab with java code).  But i am not going to give you the java code.  Our usual Batch Programming.

You can try this in your school or college systems(it should be networked systems).

Step 1: 
 Get  the ip address of your friend's system.
if you are using college or school system,then ip