I am reasearching a product to protect my 9-year-old son from adult content on the Internet. From my research it appears that WebWatcher is one of the best. I am also a network administrator and the capability of a product like WebWatcher is quite scary from a corporate point of view. After it is installed on a PC it is essentially invisible. Nothing visible in the registry, nothing in the directory structure, and nothing in Add/Remove Programs. Further, it specifically says no known antivirus product will detect its existence. I have confirmed that data is sent out from the monitored PC via port 80 (the same port a browser typically uses) and similarly the monitoring PC needs only port 80 as well. Therefore it is unlikely a firewall will block this program. Do you know if this program installs as a root kit? Do you know if there is anyway for a company to know if such a product is installed anywhere in the organization? Thank you.