Sounds like your well on the way with installing ZA, just pick and choose wisely what you want to access the net and what you don't. . .the .dll file might not be able to be deleted b/c it is probably used by other progs, do a search for the prog and try to delete the .exe.. . .

Oh yeah, more security, I disble all the auto-update features, that way I know it is connecting when I want it to, if you have to use peer progs like Kazaa, don't select the option to always allow them, have ZA ask every time it wants to connect, which is actually what I do for all my progs. . .I'm sure others will have some excellent suggestions, as well.