Where do you see a help button in the Speech options?
Tools -> Options -> Sounds -> Speech
You should see an "OK" "Cancel" and the "
HELP" button.
If you like, I'll take a print screen, with directions.
(I can also confirm that the button does not open the help file, while under "Speech" in the treebar of the Options panel).
Tools -> Options -> Sounds (Help button works)
Tools -> Options -> Sounds -> Request (Help button works)
Tools -> Options -> Sounds -> Speech (Help button does NOT works)
mIRC 7.22 WindowsXP SP3