Wild Tangent and Dyfuca?? please help

I have Spybot S&D and Spyware Blaster as well as AVG ..Wild Tangent has been picked up by the first utility..I removed it then when I booted up the next day it said dll was missing and so there was a problem..so I recovered it and all is okay..except everytime spybot does a scan it picks "Wild Tangent again" I think my pc must need it or something..sorry I am so vague..I am a very "Silver Oldie" lol

Also when I start-up a notice comes up saying I have a Dyfuca or something in my system/volome... AVG and none of the others pick it up though... what do I do please....thank you