Microsoft Covenant Regarding Office 2003 XML Reference Schemas
Microsoft irrevocably covenants that it will not seek to enforce any of its patent claims necessary to conform to the technical specifications for the Microsoft Office 2003 XML Reference Schemas posted at http://msdn.microsoft.com/office/understanding/xmloffice/default.aspx (the "Specifications") against those conforming parts of software products. This covenant shall not apply with respect to any person or entity that asserts, threatens or seeks at any time to enforce a patent right or rights against Microsoft or any of its affiliates relating to any conforming implementation of the Specifications.
This statement is not an assurance either (i) that any of Microsoft's issued patent claims cover a conforming implementation of the Specifications or are enforceable, or (ii) that such an implementation would not infringe patents or other intellectual property rights of any third party.
No other rights except those expressly stated in this covenant shall be deemed granted, waived or received by implication, or estoppel, or otherwise. In particular, no rights in the Microsoft Office product, including its features and capabilities, are hereby granted except as expressly set forth in the Specifications.