TREND MICRO Worry-Free Business Security Standard - 51 - 250 Users / 1 Year System Requirements: Operating Systems: Clients: Windows XP, Vista, Windows 7, Windows 8, Windows 8.1 x86/x64 Mac Clients: Mac OS X Snow Leopard, Leopard, Tiger Windows Servers: 2003, 2003 R2, 2008, 2008 R2, 2012, Small Business Server 2003, 2003 R2, 2008 & 2011, Storage Server 2003, 2003 R2, 2008 & 2012, 2012 R2 x64, Home Server 2011, Server 2008 2008 R2, Essential Business Server 2008, Server 2012 Essentials Mac Servers: OS X Mountain Lion 10.8 or later, Mac OS X Lion 10.7 or later, Mac OS X Snow Leopard 10.6 or later, Mac OS X Leopard 10.5.7 or later, Mac OS X Tiger 10.4.11 or later, Mac OS X Mavericks 10.9 Mobile Security (Advanced version only): iOS 3.0-6.1 (4.3-7.0), Android 2.2-4.2, Windows 7.0-8.0, BlackBerry 7.0-10.1 Email Servers (Advanced version only): Exchange Server 2003 SP2, 2007 SP1, 2010 SP 1, 2 and 3, 2013 Processor: Clients: Intel Pentium x...