Some people remember, and some seem to have forgotten, but Microsoft has driven many companies out of business. There are those who have argued that Microsoft did this simply because they were the better competitor, but that is not the only reason.
Microsoft gained an early monopoly in the PC operating system arena, then abused that monopoly to damage competitors ability to compete. The Netscape browser was a perfect example.
Anyway, here is a leaked document from a court case in which Bill Gates is suggesting that Microsoft manipulate an open industry standard in such a way as to hurt Linux. This kind of predatory practice is unbelievable – especially when aimed at a free software movement where all of the development has been voluntary!