to be clear, Stacker sued MS over intellectual property concerns, and not over monopolistic actions like bundling a web browser into their OS like they encountered with IE/Windows 98
As far as I remember, Stacker was a marvelous software that compressed disks in a transparent manner. Everybody was using it (often pirated). Then Microsoft has provided DoubleSpace for free with its new release of DOS. It was slightly inferior (more bugs) but had basically the same functionalities. This was the murder of Stacker by the infamous Microsoft.
