IBM, Adobe, Oracle join EU antitrust case against Microsoft

Some of Microsoft Corp.’s fiercest rivals, including IBM, Sun and Adobe, have joined the European Union’s antitrust investigation of the company’s Internet Explorer (IE) browser.

The European Committee for Interoperable Systems (ECIS), whose members include Adobe, Corel, IBM, Oracle, RealNetworks and Sun, announced today that the European Commission had granted the trade group "interested third-party" status in the ongoing action against Microsoft.