Eset NOD32 Antivirus Business Standard, 1Y, 5PC, RA. License quantity: 5 user(s), Number of years: 1 year(s). Minimum hard disk space: 300 MB, Minimum RAM: 128 MB, Minimum processor: Intel / AMD. Compatible operating systems: Windows 7/Vista/XP/2000/Server 2008/Server 2003