> Microsoft wasn't prosecuted because Windows was a monopoly, Microsoft was prosecuted because it leveraged that monopoly to block out other competitors (you could not buy a PC without a Windows license, even if you wanted to put another O/S on it).

That's what the Microsoft antitrust lawsuit should have been primarily about. The central issue in the lawsuit was including IE with Windows. Now 20 years later, the idea that they shouldn't include a web browser with their OS just seems silly.