Install either but both are not necessary, reboot, read FAQ and overview, use
online update feature to obtain the latest reference files, scan for Spyware
much like you would with your pre-installed anti-virus scanner.
Rid your machine of unwanted Spyware pests.
HTH
--
siljaline
"Arguing with anonymous strangers on the Internet is a sucker's game
because they almost always turn out to be -- or to be indistinguishable from
-- self-righteous sixteen-year-olds possessing infinite amounts of free time."
- Neil Stephenson, _Cryptonomicon_