where does windows l,ive mail store its CONTACTS info

I can add a contact in Windows Live Mail, but the only way to see the Contacts is to set up a new Email and click on "To...".  I can Edit a Contact there in the list that comes up, but I cannot delete one.  I want to backup my Windows Live Mail contacts and Emails, but cannot figure out what directory they are stored in.  Where does Windows Live Mail store its Contacts and Emails? It doesn't store them in the Windows 7 CONTACTS directory, and it doesn't seem to be able to access that directory to use contact info stored there - response to "look in contact directories" Lets you Choose ACTIVE DIRECTORY and VERIZON INTERNET DIRECTORY but neither can be accessed.