All of these practices feel fairly benign compared to what microsoft is doing now. At the time they merely shipped the browser with the OS. I don't think this would even raise an eyebrow now. They were also accused of adding new features only in IE which forced websites to deal with incompatible browsers. /s of course this is a problem developers do not need to deal with anymore! The Microsoft we are dealing with now…
Flash was never an "internet standard"; it was a proprietary product of Adobe.
OK, it depends on what you mean by "internet standard"; in general, I take "X standard" to mean a specification for X issued by some standards body, such that a third-party can implement X by following the spec.