Legal problem, absolutely. But it is hard to spin bundling a web browser as an ethical concern - especially from MS's perspective. Everything they put in the OS

Legal problem, absolutely. But it is hard to spin bundling a web browser as an ethical concern - especially from MS's perspective. Everything they put in the OS is a component bundled with the OS. Some components being legally special and problematic would have been quite confusing to them when it first hit. Web browsers aren't special and there is an expectation that an OS can access the internet using a variety of protocols. The ethical issue would be around making it technically harder for competitors to create a web browser. Eg, standard practice on mobile phones (which is worse than anything MS ever did and has always seemed fine to me).