Trend Micro Client Server Security for SMB 3.5, 5 users (EN). Software type: Box, License quantity: 5 user(s). Language version: ENG. Platform: Win32/64. Minimum hard disk space (server): 800 MB, Minimum hard disk space (client computer): 80 MB, Minimum RAM (server): 512 MB. Compatible operating systems: Microsoft Windows 2000 (SP2+)/ Windows 2003 Server /Windows XP (SP1+)/ SBS 2000 / SBS 2003