On 14 July 2015, Microsoft is stopping support for Windows server 2003 and Window Server 2003 R2, signaling the breakdown of security updates and hotfixes.
Microsoft will continue to offer paid support to certain organizations that have begun the process of upgrading to next-generation software. Microsoft recommends choice of Window Server 2012 R2, the cloud computing platform Microsoft Azure and Office 365, more for which they are published at http://www.microsoft.com/el-gr/business/server-2003-end-of-support/