The big difference to me is that with Netscape, Microsoft distributed a free Internet Explorer with Windows just when Netscape was trying to monetize their soft

The big difference to me is that with Netscape, Microsoft distributed a free Internet Explorer with Windows just when Netscape was trying to monetize their software. In the case of Borland, Microsoft wasn't distributing free C compilers to compete with Borland's paid compilers. I think the government decided to act because in the case of the browser, they bundled it with Windows, for free, to kill a competitor. But I agree, having Windows on nearly every desktop in the world gives them a way to launch new products that no other software company enjoys, even to this day, except maybe Apple, Google, Amazon, and Facebook.