Detail study about PICS header in HTML

PICS react by evaluating PICS details from HTML META tag or HTTP description with a rating file configured in the browser. Usually, the rating file is offered by a Rating Service, which gives a draft to produce PICS headers proper for addition in a document.

PICS for developers:
As we know PICS is vendor and independent of platform so comfortably can be used easily with Internet Explorer. With simple settings users can enable the PICS support on this explorer. To enable the service you have to click on View then Internet Options. Go to security option and click on content advisor. One thing you should keep in mind and that is internet explorer by default comes with enabled RSAC rating files. That file is usually located at the path of C:\WINDOWS\System\Rsaci.rat. Users can view this file while opening in notepad.

Multiple rating or ranking file can be installed
First you have to download the file from rating service like if you are looking for VWP1.0 rat to install then you have to get it downloaded from rating services. Download path should C:\WINDOWS\System directory. You can download the file at any other path but this is the default path and the file should be installed at this similar path. Before downloading any file you should check the extension and it should be .rat only. After downloading click on content advisor-> settings-> advanced-> rating systems and select add, click on new rating file and press ok button.

Once the content advisor is enabled you can select general settings to allow the viewing of unrated files. After pressing yes button then simply pages with a PICS rating above the stipulated limits will be barren. However, those who are unrated sites will not get blocked no matter whatever the content is present in the file.