Webbrowser control (VB6) - how to clear cookies / session?

This is a fairly simple project if you know the answer already. Basically I want to have two different 'sessions' at the same time for yahoo mail - one in the webbrowser that is in my vb6 project and the other in internet explorer. In other words, one account is logged into the webbrowser and another account is logged into internet explorer at the same time. I simply need to know how to do this :)