Double Anti-Spy Professional is the ultimate PC security software combining two leading anti-spyware engines to deliver more effective protection against some of the most malicious computer threats. The software uses both traditional anti-spyware and cutting-edge anti-malware technologies that enable it to respond more effectively to mutating and aggressive spyware, eliminating the need to run multiple security programs on a computer. Double Anti-Spy Professional is for Windows XP, Vista, 7 and the software is also fully integrated with Windows 7 Security Center.