Quarantine is a different form of a recycling bin.
Infected files are safely stored in it and then, if you want 'Scan and Deliver' will send the files over to the SARC, where the researchers will give a speedy analysis on your infected files. AntiVirus can also scan compressed files, protect you from dangerous forms of ActiveX code, Java Applets, and Trojan horses. Overall, I found Norton AntiVirus 5.0 to be your best bet against viruses. It is a real lifesaver and you owe it to your home or company's protection to get it.