Windows Server 2003 has been out for quite some time and, while it has been a good operating system, it is time to retire this server. Microsoft has not released a service pack in years for this operating system. They are still releasing security fixes, but that will end in July of 2015. If you are still using Windows Server 2003, you need to come up with a plan to migrate to a more recent operating system. It will save you the rush of having to do it before a deadline when the server will not be patched anymore.