Software Filters Filtering software is installed directly on your computer. Usually, this allows educators to make a list of words they consider to be unacceptable. Most filtering software is customizable. Not only does the software block URLs, but some filtering software also prohibits the sending or receiving of e-mail messages containing these words. Two top filtering software programs are NetNanny , and We-Blocker .
Some software is available as freeware, while other programs are shareware or are sold outright.
The perks of this type of filtering are that there is no installation of software on your computer. Therefore, you do not have to set up configuration files. A configuration file holds the parameters in which the software must work. These files are made because of the new software being installed. ISP filters offer added protection, because they are usually password protected.