When Double-Take failover occurs, Windows initiates WINS registration with the target’s primary WINS server to associate the source server’s name with the target’s primary IP address. In an environment with just one WINS server, no additional processing is required. In an environment with more than one WINS server, WINS replication will distribute the updated WINS registration to other WINS servers on the network. The length of time required for all WINS servers to obtain the new registration depends on the number of WINS servers, the WINS replication architecture, and the WINS replication interval. Clients will be unable to access the target until their WINS server has received the updated WINS information. You can reduce the time required for the WINS updates, thereby decreasing the wait time for the end users, by scripting the WINS updates in the Double-Takefailover scripts. You have two options for scripting the WINS updates.