Run Command Prompt as Administrator
Change to C:\Program Files\Kyocera\NetGateway\netgw\lib
cd C:\Program Files\Kyocera\NetGateway\netgw\lib
Run NetGW.Main.Update.exe
The new gateway version is downloaded from KFS to to a new folder that is created:
cd C:\Program Files\Kyocera\NetGateway\netgw\updates
run setup in the gw_* folder
This will
stop the Kyocera NetGateway services
do the update
start the Kyocera NetGateway services
This can take about ~10 minutes