i need help with spyware?

i have 3 of them on my computer spyware dr. webroot spysweeper, and norton antivirus 2005 do i need all three not sure about this stuff please help i know norton stops worms but i do not know if the rest of them do thanks for you help
how do i turn off one to us on demand?

norton is cool get rid of others…

instead get windows defender.

Spyware Doctor with Antivirus Review Part 2