Analysts agree that most enterprises have reached a point where they can <A HREF="http://www.eweek.com/article2/0,1895,1992007,00.asp?kc=EWNAVEMNL072106EOAD">effectively block many forms of spyware,</A> but targeted attacks at specific companies and the need to further integrate security technologies are both keeping businesses on their toes. Much as in their battle against unsolicited spam email, enterprises are having success in reducing the impact of spyware programs, but a new breed of targeted attacks combined with a constantly changing array of delivery methods has kept the malicious code on IT administrators' radar.