It's actually after 15 or more years of generally good behaviour. After the anti-trust case, Microsoft spent a decade under the close supervision of the US DoJ,

It's actually after 15 or more years of generally good behaviour. After the anti-trust case, Microsoft spent a decade under the close supervision of the US DoJ, as well as the supervision of the EU (with an eye to imposing large fines if possible). I expect it's done things you (and me) don't like in the past 15 years. However, the same goes for Apple, Google, IBM and Oracle. Microsoft hasn't been the least ethical of that lot.