http://blogs.technet.com/ryan_christiansen/archive/2008/04/25/what-to-do-next-when-some-word-documents-will-not-open-after-installing-service-pack-3-for-office-2003.aspxAfter you install Microsoft Office 2003 Service Pack 3 (SP3), you can no longer use Microsoft Office Word 2003 to open or save some files that you could open before you installed SP3. The reason for this is because those files may pose a security risk.en-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/ryan_christiansen/archive/2008/04/25/what-to-do-next-when-some-word-documents-will-not-open-after-installing-service-pack-3-for-office-2003.aspx#3198375Sat, 07 Feb 2009 01:18:52 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3198375Microsoft Office Word/OneNote Topics<p>After you install Microsoft Office 2003 Service Pack 3 (SP3), you can no longer use Microsoft Office</p>