Gaahh!
This sort of thing makes my blood boil!
Microsoft were indeed very anti-competitive some years ago, but they have beyond recognition and have complied with all the rulings. Now the EU are, yet again, having a pop - without good reason in my opinion. It's extremely simple to use a different browser, and to suggest that competitors in the marketplace - that are already significantly eroding MS's market share - should be using MS's own code is unreasonable at best.
To also suggest that other browser manufacturers will have to add 1000s of lines of code to replicate a rendering engine that they and the community have universally condemned for years is just plain hypocritical! This lot have been banging on and on saying MS should make their browsers render in a standard manner, and then when they do so they complain that it's anti-competitive! Any respect I have for these people is rapidly being eroded with every one of these ridiculous comments.