Nobody made you or anyone else use a free browser.

> .doc format.

Geez, it's a file format.

> Viruses.

Microsoft did not unleash any viruses on the world.

> They abused their monopoly to sell crap software and destroy competitors. At least, that's what the courts say.

Yeah, I'm familiar with what the Jackson court said. If you read "In Search of Stupidity", Microsoft's competitors did a fine job of destroying themselves. And Linux and Apple computers were always available for anyone to buy.