http://www.microsoft.com/downloads/details.aspx?FamilyID=b3611543-58b5-4ccc-b6ce-677ebb2a520d&displaylang=en

This joint Microsoft and Juniper Networks white paper looks at the changing expectations of IPv6 with the growth of IPv6-enabled applications like Microsoft Windows Meeting Space in Windows Vista.

For more information about IPv6 in Windows, see  http://www.microsoft.com/technet/network/ipv6/default.mspx.