IP and competition law

From John Vickers, Competition Policy and Property Rights, p.23
"The European Microsoft judgment has therefore left unclear when a dominant firm with IP rights must share them with rivals. Following the judgment, the answer in Europe appears to be: by no means as exceptionally as previously thought. In some ways it is regrettable that Microsoft did not appeal to the European Court of Justice, which might usefully have clarified if not tightened the law".