Brussels--The European Commission said Friday it is investigating Intel Corp., the world's largest computer chip manufacturer, for possible antitrust violations. The commission is examining the way Intel licenses the design of the bus connections that link chips with other computer components, according to Intel. The Santa Clara, Calif.-based company has 84% of the computer chip market in Europe, which generated a quarter of Intel's $34 billion in sales in 2000. Two unidentified competitors have charged Intel with "abusive" marketing tactics, the commission said in a statement, adding that it has not yet uncovered any evidence that Intel broke any European laws. Separately, the commission said it might broaden its investigation into Microsoft Corp.'s dominant market position in Europe.