The GlobalNames zone is a mitigation strategy for helping you migrate off of WINS servers. One of the main reasons for this is because WINS does not support IPv6. It also provides another avenue for you to further harden your networks. The way that the DNS server in server 2008 services WINS queries is as follows
· The client's primary DNS suffix is appended to the single-label name, and the query is submitted to the DNS server.
· If that FQDN does not resolve, the client requests resolution using its DNS suffix search lists (such as those specified by Group Policy), if any.
· If none of those names resolve, the client requests resolution using the single-label name.
If the single-label name appears in the GlobalNames zone, the DNS server hosting the zone resolves the name. Otherwise, the query fails over to WINS.