Neil speaks the truth, except for telling you to turn it off -- spell check in comments is quite helpful -- those who come after will thank you for ensuring they can read your comments without trying to decode random spelling errors.
The lines are simply pointing out words your IDE thinks are spelled wrong. I don't know why it doesn't understand "registry", but you have, in fact, misspelled "following" (as "follwing"). Fix the latter, ignore the former (or add it to the dictionary, don't remember if there's a convenient mechanism for that There is! See Macke's helpful comment below.).