I'm pretty happy with my connection, and have manually tweaked the registry. But of course, am always looking for optimization

.
Anyway, in looking through the FAQ and forums, i just want to make sure I understand a couple things:
(a) when you install Cablenut, it zeroes out all the registry settings pertaining to connection paramters, correct?
(b) before it does this, does it save a copy of the registry settings as I had them, or do i need to backup my registry first?
(c) so that should something all of sudden not work, and I want to revert back to *my* settings (not the MS default settings), can this be done in Cablenut, or do I have to do this manually via restoring my registry backup?
I'm running win98 SE on a cable internet connection.
thx in advance,
jeff