Microsoft Office 2003 Service Pack 3 (SP3) contains security enhancements and stability improvements. Some fixes that are included with Office 2003 SP3 were previously released in separate updates. Office 2003 SP3 combines the previously released fixes into one update.office 2003 activation code You can get specific information about this update in the Microsoft Knowledge Base article at http://support.microsoft.com/kb/923618/en-us. This service pack includes significant new security updates. This service pack also includes updates previously released for Office 2003: - Office 2003 Service Pack 1 - Office 2003 Service Pack 2 - Other Office 2003 Updates Office 2003 SP3 also includes updates for the Microsoft Office 2003 Multilingual User Interface Pack. After you install Office 2003 SP3, - you can use a registry key to enable or to disable the instantiation point of a specific COM category in an Office 2003 program. - you can use a registry key to change the number of embedded MIME messages that are processed before a MIME message appears in the message body in Outlook 2003. - you can install add-ins in Microsoft Office Access 2003 on a Windows Vista-based computer.