The WLBS registry entries are located at:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WLBS\Parameters

You can adjust the following values to manage the service: (I have indicated when the setting is available in the GUI)

                                 AliveMsgPeriod                                 Data type = REG_DWORD                                 Range = 100 - 10000                                 Default = 1000                                 Specifies the time in milliseconds between "I am alive" status messages                                 broadcast by each host.                                 AliveMsgTolerance                                 Data type = REG_DWORD                                 Range = 5 - 100                                 Default = 5                                 Specifies the number of periods to wait, after the last message from a host,                                 before it is declared dead.                                 ClusterIPAddress                                 Data type = REG_SZ                                 Specifies the IP address of the WLBS cluster (GUI).                                 ClusterName                                 Data type = REG_SZ                                 Specifies the name of the WLBS cluster (GUI).                                 ClusterNetworkAddress                                 Data type = REG_SZ                                 Specifies the media access control address (MAC) used by the WLBS cluster (GUI).                                 ClusterNetworkMask                                 Data type = REG_SZ                                 Specifies the network mask used by the WLBS cluster (GUI).                                 ClusterModeOnStart                                 Data type = REG_DWORD                                 Range = 0 or 1                                 Default = 0                                 Specifies whether WLBS should start on boot up (GUI).                                 ConnectionCleanupDelay                                 Data type = REG_DWORD                                 Range = 0 - 3600000                                 Default = 300000                                 Specifies TCP connection cleanup delay between cluster node restarts, in                                 milliseconds.                                 DedicatedIPAddress                                 Data type = REG_SZ                                 Specifies the dedicated IP address of the WLBS host's NIC (GUI).                                 DedicatedNetworkMask                                 Data type = REG_SZ                                 Specifies the dedicated network mask of the WLBS host's NIC (GUI).                                 DescriptorsPerAlloc                                 Data type = REG_DWORD                                 Range = 16 - 1024                                 Default = 512                                  Specifies the number of connection descriptors allocated at a time.                                 HostPriority                                 Data type = REG_DWORD                                 Range = 1 - 32                                 Default = 1                                 Specifies the value for the Host Priority (GUI).                                 IPToMACEnable                                 Data type = REG_DWORD                                 Range = 0 or 1                                 Default = 0                                 Enables automatic network address derivation from primary cluster IP address.                                 LicenseKey                                 Data type = REG_SZ                                 Specifies the license key used by the WLBS cluster (GUI).                                 MaxDescriptorsAlloc                                 Data type = REG_DWORD                                 Range = 1 - 512                                 Default = 512                                 Specifies the maximum number of times connection descriptors can be allocated.                                 MaskSourceMAC                                 Data type = REG_DWORD                                 Range = 0 or 1                                 Default = 1                                 When set to 1, WLBS masks source MAC address in outbound packets,                                 preventing switches from learning and forcing them to broadcast packets for                                 unknown addresses to all ports. When set to 0, WLBS disables masking of the MAC address.                                 MulticastSupportEnable                                 Data type = REG_DWORD                                 Range = 0 or 1                                 Default = 0                                 Enables multicast mode.                                 MulticastARPEnable                                 Data type = REG_DWORD                                 Range = 0 or 1                                 Default = 0                                 Enables ARPing from cluster IP to multicast media access control in multicast mode.                                 NBTSupportEnable                                 Data type = REG_DWORD                                 Range = 0 or 1                                 Default = 1                                 Enables NBT cluster computer name support.                                 RemoteControlEnabled                                 Data type = REG_DWORD                                 Range = 0 or 1                                 Default = 1                                 Enables remote control.                                 RemoteControlUDPPort                                 Data type = REG_DWORD                                 Range = 1 - 65535                                 Default = 1717                                 Specifies remote control UDP port for WLBS to use.