MS Office 2003 SP3 blocks some Office 2003 files from opening, by design.

Is this a sign MS don't trust thier own file formats? Can't be.

http://www.theregister.co.uk/2008/01/02/xp_service_pack/
Office update disables MS files
Service pack says 2003 a very bad year
By John Oates
Published Wednesday 2nd January 2008 15:15 GMT

Microsoft's Service Pack 3 for Office 2003 blocks you from opening
certain file formats the software giant deems less secure - including
its own.

The service pack will block access to files including some Office Excel
2003, MS Office PowerPoint 2003 and MS Office Word 2003, it has emerged,
as well as Corel Draw formats.

Microsoft said: "By default, these file formats are blocked because they
are less secure. They may pose a risk to you."

The software giant has provided a workaround for users who need to
access such files but the default is to disable access.

The Service Pack launched in December.



Me