Correction: someone did a study at MIT about aluminum helmets, not tin foil hats. The important distinction being aluminum vs. tin.
Word to the wise: Only buy tin for your protective day wear, as it hasn't been proven ineffective at blocking radio waves by MIT, unlike aluminum. Stay safe out there!
Quick addendum: This is a bit. Don't come after me, Big Aluminum.
Dunno if I'm misunderstanding you or you're misunderstanding the person you replied to, but Notepad++ is a third party program unaffiliated with windows or notepad. It's also an astronomical step up from notepad and it's free and has optional plugins and whatnot.