ThreatSense.net is a configurable bidirectional early warning system that keeps the protected computer informed of new threats, and submits information to ESET for analysis. I liked this customizable feature.
The Network Protection mode can be either configured for Strict protection or Allow sharing. This is a convenient "toggle switch" setting for mobile computers, for example, when on a public wireless network.
SysRescue creates bootable media to scan and clean the system without needing to boot the host operating system, to remove infections difficult or impossible to remove while the OS is running.