I have a client wanting to have their system not display adult content. I have never used any of these software titles before, but sure in time once I have kids I will become a expert in which is best. So far I am not sure if their system is bugged up with garbage. But considering their system is clean and they just don't want to have to accidentally see or purposesly see adult content, what is a good program to use or should I just turn on the IE content blocker?