Microsoft has settled antitrust class action lawsuits with five states and the District of Columbia, the company announced Tuesday. The six new settlements, with a total value of about $200 million, brings the total number of states that have settled to 10. Class action lawsuits against Microsoft for antitrust-related practices continue in five states. The total cost to Microsoft of all 10 class-action lawsuits it has settled is about $1.55 billion, including a $1.1 billion settlement of a California lawsuit in January. Read more: PC World.