"...The announcement confirmed that Microsoft was planning to use its software patent portfolio against interoperating products by requiring a patent license for all commercial activity [...] Microsoft's patent licences are incompatible with Free Software [...] Free Software's freedoms to use, study, share and improve software without additional restrictions are key to the success and utility of Free Software in both commercial and non-commercial ICT infrastructure. They are also the basis for many of today's working examples of interoperability and competition..."

Prominent legal counsel the Software Freedom Law Center said that the legal terms covering Microsoft's Open XML document formats pose a patent risk to free and open-source software developers.

"Perhaps I was a little quick to congratulate Neelie Kroes on a job well done forcing Microsoft to extend its interoperability protocols to open source software vendors and developers. It now appears that the terms of the agreement mean that it is incompatible with the GPL..."

The Business Software Alliance (BSA) is pressuring the European Commission to remove the last vestiges of support for Open Standards from the latest version of the EU's interoperability recommendations, the European Interoperability Framework. FSFE has obtained a copy of a letter sent to the Commission by the BSA last week.

The European Commission gave a guarded welcome to Microsoft's pledge on Thursday for "greater transparency" in its development and business practices.

The EU Commission and Microsoft have settled the browser choice issue, and the Commission will continue to monitor interoperability issues, with Microsoft posting a new and "improved" set of documents today about interoperability.

Microsoft irrevocably promises not to assert any Microsoft Necessary Claims against you as an open source software developer ("You") for making, using, importing, or distributing any implementation of a Covered Specification ("Covered Implementation"), subject to the following.

Free Software industry criticises remarks by Commission's Vice President Siim Kallas: The European Commission (EC) has given in to the demands of lobbyists for Microsoft and SAP when it revised a key document on interoperability between electronic government services.

On Friday FSFE sent a letter to the European Commission to support Open Standards and interoperability. In the drawn-out battle to retain at least a weak recommendation for Open Standards in the revised European Interoperability Framework, FSFE has countered a leaked letter by the lobby group Business Software Alliance with its own thorough analysis of the relation between standards and patents.