Microsoft said Friday that it is halting development of future Macintosh versions of its Internet Explorer browser , citing competition from Apple Computer 's Safari browser .
Microsoft will stop developing versions of its Internet Explorer browser software for Macintosh computers , saying that Apple 's Safari is now all that Apple needs .
BAT also said Antonio Monteiro de Castro , director for Latin America and the Caribbean , would become chief operating officer on January 1 , 2004 .