WinRoute can be upgraded by the following two methods:
by starting the system from the installation CD (or a mounted ISO) of the new version. The installation process is identical with the process of a new installation with an the only exception that at the start the installer asks you whether to execute an upgrade (any existing data will be kept) or a new installation (all configuration files, statistics, logs, etc will be removed). For details, see chapter 2.7 Installation - Software Appliance and VMware Virtual Appliance.
by the Kerio Administration Console update checker. For details, refer to chapter 16.3 Update Checking