How about MS revising the warning to something like, "We could just post the error code so you spend the next hour or so searching for the significance of what it means. In fact, that is exactly what we're going to do. We are not about to fix it because we know that you don't have IE as your default browser. By letting you know that, we'd be admitting that we're sometimes really lazy and don't want to fix something that you could easily fix yourself by succumbing to the MS cult."
Perfect !