As a bit of history, here's what happened to Microsoft when they refused to comply with the EU order to open up the protocols that Windows Server used to communicate with Windows clients as one of the enforced antitrust remedies.
>The European Union's chief antitrust regulator fined Microsoft Corp. another $1.3 billion (899 million euros) today for what she said were business practices that "continued to stifle competition" after it was ordered to change four years ago.
Today's fine, she said, was applied because Microsoft continued to thumb its nose at the EU for more than a year -- 488 days, Kroes said at one point -- by charging an "unreasonable price" to rivals that licensed Windows' communication protocols to make their own software work more smoothly with the U.S. software maker's server products.
https://www.computerworld.com/article/2537525/eu-fines-micro...