I use systemsuite by vcom. anti virus, firewall and a bunch of other helpful programs
http://www.v-com.com/product/SystemSuite_Home.html --------------------------------------------------------------------------------
<---Also a user , if you use auto update it hits pratically everyday when the bug writers are busy .. mines set to manual (i just update when ever the mrs Roo Yells at me that theres anouther update)
If you already have a firewall fix it utilitys 5 is the same program just without the firewall . been using it for 3+ years now with great results.