With the release of "Hosts Manager" it's no longer necessary to download, unzip and install your custom hosts file manually.
Hosts Manager, once installed will check on four sources of Custom Hosts files and install them for you and then check for and remove any duplicate entries.
It's simple, easy, FREE and only takes a few seconds to keep your custom hosts file up to date.
Happy Computing!
The Doctor
PS: Hosts Manager can be found for download, HERE:
http://www.mvps.org/winhelp2002/hosts.htm
Just scroll down the page to the green " H ".