We recently noticed that there might be an issue with Office 2003 and RMS. this issue is fixed in-between and here are the information:
Starting on December 11, 2009, customers using Office 2003 will not be able to open Office 2003 documents protected with the Rights Management Services (RMS) or Active Directory Rights Management Service (AD RMS). Customers will also not be able to save Office 2003 documents protected with RMS/AD RMS.
The following error message may be displayed when attempting to open RMS-protected/ AD RMS-protected documents using Office 2003:
"Unexpected error occurred. Please try again later or contact your system administrator"
This symptom affects Office 2003 products used in conjunction with RMS and AD RMS, including Word 2003, Excel 2003, PowerPoint 2003, Outlook 2003, Excel Viewer and Word Viewer. It does not affect Office 2007.
A supported hotfix is now available from Microsoft. Note: the hotfix is intended to correct only the problem described above. Apply the hotfix only to systems that are experiencing this specific problem. Please review the following KB Articles for more information on affected products, hotfix prerequisites, restart requirements, workarounds, hotfix supersedence, registry information and file information:
More Information: The Office product group will provide updated information as it becomes available at the Web sites below.
Resources Related to This Alert
· RMS Team Blog: http://blogs.technet.com/rmssupp/
· Office Team Blog: http://blogs.technet.com/office_sustained_engineering/
Steve Chen from daily business @ SharePoint Support