Windows Server Core 2008/2012 are "minimal" installations of Windows Server 2008/2012. In a Server Core:
Many of the Windows Server 2008/2012 options and features are removed.
The server runs a much thinner core operating system.
Tasks are performed mostly from the command line interface.
The operating system runs fewer services and requires less resources during startup.
The OfficeScan agent supports Server Core. This section contains information on the extent of support for Server Core.
The OfficeScan server does not support Server Core.