It appears that downloading an "unregistered" copy is free, but that version
will protect the first e-mail address it finds only. If you want to register
which will allow you to protect all e-mail addresses it will be $24.95,
presumably in US funds.
There is a wonderful piece of software called "Troll Trapper" that you
can get -- it uses a little java script that scrambles the e-mail
addresses on websites before they are uploaded so that spambots don't
see the addresses, yet they appear in their proper formats, can be cut
and pasted as necessary, and can work as "mailto" forms for the average
Check Google for the Troll Trapper website (I am in the midst of a major
download at the moment or I would have done so before posting this) -- I
am under the impression that this is freeware.