Microsoft Chief Executive Officer Steve Ballmer addresses a news conference in the northern German town of Hanover March 3, 2008. REUTERS/Christian CharisiusThe hunted became the hunter when Microsoft filed its first-ever complaint to antitrust regulators, claiming that Google thwarts Internet search competition. Thomas Vinje, who led a coalition that won EU fines against Microsoft said the software maker “has learned from its own unpleasant experiences how to cause maximum disruption for its competitors via competition law”. Google controls over 90 percent of the Internet search advertising market in Europe, well ahead of Microsoft’s Bing. And browsers such as Firefox and Google’s Chrome have eaten away at the market lead by Microsoft’s Internet Explorer.