**The European Commission has begun an investigation to determine whether Microsoft is upholding pledges to curb anti-competitive practices.**It is consulting PC makers, software firms and consumers on Microsoft’s offer to allow users to pick different browsers when they install Windows.
The Commission ruled in 2004 that Microsoft had abused its dominant market position by freezing out rivals.
It said Microsoft must let rivals’ products run on its operating system.
The Commission also fined Microsoft and forced it to offer a version of its Windows operating system without Microsoft’s own media player.
The company was also told to give rivals more information about how Windows works, so they could make their own software integrate better with the operating system.
Microsoft appealed against the decision but lost its case in 2007.