Kaspersky Lab Business Space Security, 25-49u. Software type: Crossgrade, License quantity: 25 - 49 user(s), Number of years: 3 year(s). Minimum hard disk space: 300 MB, Minimum RAM: 512 MB, Minimum processor: Intel Pentium 800 MHz. Compatible operating systems: Windows 98/ME/NT 4.0/2000/XP/Vista/7. Language version: Multilingual, Platform: PC