I-alcyone mentioned a Good program to use.
Ad aware. This can be found at Downloads.com or hotfiles.com
Make sure you get a recent copy or keep the signature file up to date.
It is small and works well at removing spyware/Cookies.
Ad subtract also works well when just out and about on the Net.
Check out the AD counter and see how many nasty lil ads it took care of.
There should be no banner ads on the network.
SVX1999