AntiAdd is a rogue antivirus application. It is installed via trojans that claim to be video codec or flash player updates and then once installed on the system it will claim to be scanning your computer and discovering all sorts of viral infected files. In addition to this it may popup warnings about supposed security threats and will claim that it cannot fix the problems unless you purchase the software. AntiAdd is essentially just out to get your money and should be removed. Read on for how to remove AntiAdd.