for a list of software programs known to have 'spyware' go to this site

to get a free program which can remove this spyware, go here and download "AdAware"

note..this might mean that you will lose a program you have liked. If you are simply willing to be part of their data collection routine, don't bother to do this. Most of these programs don't actually do anything to you, but some folks object on principle to being surveyed and followed without their permission. Your choice.