XLink ClusterBalancer is a high-availability clustering and firewall solution for Windows 2000/XP/2003 environments. The Main features of ClusterBalancer are Load Balancing, Failover, Failback, File Synchronization, and Firewall. ClusterBalancer allows secondary system to take over all traffic requests should the primary system fail. It also provides individual network service load balancing, failover and failback (such as Web service, e-mail service, FTP service etc.) to ensure stability and efficiency across all data and applications.