Question: do I need a anti-spy if I have avast virus downloaded? 

Answer: You are better off having both antivirus, and anti-spyware running.\nTry the following products. They are very good, and free! Be sure to keep everything updated since many new versions of viruses, worms, spywares are created everyday. \nHope this helps!
This question from the Yahoo Q&A forum is categorized in the topic: Health