 European antitrust regulators on February 27, 2008 fined Microsoft $1.3 billion for failing to comply with a 2004 judgment, that the company had abused its market dominance.The new fine by the European Commission was the largest it has ever imposed on an individual company, and brings the total in fines imposed on Microsoft to about $US 2.5 billion, at current exchange rates.Microsoft had previously been fined after the commission determined in 2004 that the company had abused the dominance of its Windows operating system to gain unfair market advantage.