Protect Agent is a command line utility that you can use to install, upgrade, query, or uninstall the block-based transfer drivers.
Although a reboot is always required when you install, uninstall, or upgrade drivers, the Protect Agent allows you to better control when the action occurs and therefore, when the server reboots. For example, you can use the Protect Agent to install the drivers during scheduled down time, instead of during the first replication.