Given recent history, weve come to expect Microsoft service packs to be significant revisions—on the order of a major new release. SP1 for Windows Rights Management, however, is much more typical of a standard service pack, with many of the new capabilities and updates on the back-end and development side, where they will be invisible to most users.
Windows Rights Management Services SP1
Microsoft's Windows Rights Management Services provides good policy creation and excellent rights controls for Microsoft Office and Outlook 2003.
Application Modernization: What Is It and How to Get Started