I'm sorry to say that I installed ZA Security Suite and had nothing but problems. I uninstalled and went back to ZA Free, no problems. The good thing was ZA gave me my money back.
I don't mean to put you off, I am just reporting my experience.
I now run ZA free and AVG free, together with the usual A²,Adaware,Spybot,Spywarebaster, and MS Antispyware which I find to be an unbeatable combination supplimented by a free online monthly online scan at click here