For a list of all features you can visit this link: http://www.funkytoad.com/content/view/13/an ultra-groovy Hosts file Manager, Editor and Helper-outter
Explanation of hosts files: (for those few members of this forum who don't know that. One has to be careful these days )
http://www.mvps.org/winhelp2002/hosts.htm
Download the latest hosts file here: http://www.mvps.org/winhelp2002/hosts.zip so you don't have to type everything yourselfFor Blocking Unwanted Parasites
Writes settings: I only found a temp file of the edited hosts file in the application folder (v4.1)
Download the ZIP package and extract to a folder of your choice. Launch HostsXpert.exe http://www.funkytoad.com/download/HostsXpert.zip
Have a nice day