The link on the help about screen points to the terms of use and the copyright notice. I believe IE ships under the "Windows Supplemental EULA" which is presented to you during installation (afaik). It would seem that some folk have uploaded copies of it to the internet, but of course they may have been altered or simply out of date etc... If you're a corporate customer you could also obtain the EULA through your Microsoft account manager, who would give you a more definive answer than a post on a forum :).
I'm not a Lawyer and could be widely off and the forums aren't an official support channel.