One step installation. No configuration needed. Just install and you are protected. With Yahoo Messenger BufferZone Security you are safe from vulnerabilities and transferred files' infections. Programs running in the Yahoo Messenger BufferZone Security are prevented from modifying your registry and file system. Think about it as a layered PC, one PC for you and another PC for your unsafe program. With Yahoo Messenger BufferZone Security you can safely run any downloaded Spyware infected programs, it doesn't matter whether the program you downloaded carries a Trojan-Horse or a Worm, install it in the Yahoo Messenger BufferZone Security, run it and never be infected. The Download link will download a small installer file to your desktop. Remain online and double-click the installer to proceed with the actual 7.9MB download