Microsoft is already in trouble over the abuse of its monopoly on the Operating System market to push people to use its other Internet Explorer and Office products, i remember reading an article (a tad sensationalist) that thought Microsoft might be sued and fined so heavily by the EU that they would no longer be able to sell Windows in Europe at all, or would receieve such heavy fines that they would go bankrupt. It sounds unlikely but i remember feeling convinced I'll see if i can find the article...