The EU ruled that microsoft was behaving in a anti-competetive manner
Microsoft ignored their ruling
The EU fined Microsoft
They have also fined TV manufacturers
http://www.bbc.co.uk/news/business-20608949
Intel
http://news.bbc.co.uk/1/hi/8047546.stm
and others
The UK competetion commission has thrown it's weight about a bit with British companies but has been somewhat reluctant to take on the big multi-nationals.
This is why so many of the big Newspaper barons dislike the EU
EU regulation has real teeth because of the size of the market
Can you imagine the UK competition authority having the you-kno-what to take on Microsoft?
No I can't either