Are you using Windows Server 2003? Are you aware that support and upgrades ends today?
Microsoft announced over 8 months ago that they would be stopping support and upgrades for Windows Server 2003 to give people time to make a decision as to whether to upgrade to the latest version and continue with support and upgrades or as some have decided to continue using the old version.
Please be aware that if you are continuing to use Windows Server 2003 that if something does go wrong the support may not be available to you to help resolve your problem. I think you must seriously consider whether you want to continue or invest in the latest version for your own peace of mind knowing that you will receive the latest updates and support.