SIFT (Simple Internet Filtration) provides free, unrestricted, list-based website filtering. For use on stand-alone windows machines and internet connection sharing traffic.

Website filtering made easy. SIFT (Simple Internet Filtration) is an internet website filter which uses a large collection of websites to allow you to control the content that reaches your eyes. By working closely with the internal structure of Windows, SIFT is compatible with all browsers.
You can choose to run SIFT in one of two ways:

1. Stand Alone Mode
This is the default installation type for sift. You control the content that all users of the computer are allowed to view.

2. Internet Connection Sharing Mode
This is a more advanced installation type used for users who share their internet on a network using a single Windows computer connection to the internet. By setting the list access, all users on the network are prevented from getting access to content that you restrict. In this mode you have the option of installing and running the SIFT administration tool on another machine and administering the server running SIFT. This is ideal in situations where your server is in a closet out of sight, or in a remote location. In order to administer a remote machine, open the administration tool, navigate to the Remoting tab, check the Connect To: 'Another Computer' option. If you need to connect as another user on the remote machine, click the Connect As: 'Another User' option and supply your domain\username and password information.

The license of this software is Free, you can free download and free use this pc access control software.