MS was making "illegal market-splitting suggestion"

and

"Microsoft began to use its market power to extract exclusionary deals with many of the largest [PC manufacturers and internet service providers]", threatening Netscape customers such as Compaq that if it tried to replace the Internet Explorer icon with the Netscape Navigator icon "

We can assume they've done many more bad things since their EEE attitude was proven many times (Bill Gates included - vide leaked email in antitrust case http://antitrust.slated.org/www.iowaconsumercase.org/011607/... )