Enter the following promo code at checkout: EMCBBCE73
Link to Item [newegg.com]
Compatible with versions of Windows Home Server (WHS) unlike most consumer versions of security products.
ESET always allows free upgrades to new yearly versions upon release
ESET home products comparison chart here. [eset.com]
For those that missed the recent 3 PC ESET Smart Security 2016 deal (@ $18)