My problem is that . I have to block certain mail sites and other sites . But the problem is that even though I block the sites in the content bar of explorer . Some people are going for the search engines sites and from there they are able to access those mail sites . Is there any solutions that works properly . If there send me step-by-step methods or else let me know
That if any third party tool is available in the internet.:(

Try using the hosts file.
It's in C:\WINDOWS\system32\drivers\etc
OPen in notepad and put in this line as many times as you need.

127.0.0.1 Name of site to block

Once this is done the request for the URL will be loopbacked, hence blocking the site access.

Did you actually try blocking it from the "content advisor", within the "tools-Options" dialog? If you tuen on content Advisor, it will by default allow no websites to be accessed at all when you start. In the "approved sites" list, you can specify a website and add in as "always allow" or "never allow". The content advisor is also protected by a supervisor password so that no one else can go change your settings.. but don't forget your password!

I hope I understood your question and was able to provide valid feedback

my problem is that . i have to block certain mail sites n other sites . But the problem is that even though i block the sites in the content bar of explorer . Some people are going for the search engines sites and from there they are able to access those mail sites . is there any solutions that works properly . if there send me step-by-step methods or else let me know
that if any third party tool is available in the internet.:(
I suggest setting up website redirection using your system host file. Change those sites you want to block to redirect to 127.0.0.1 and you don't have to worry about search engines still pointing to them.

There's a great tutorial on this (here (http://www.mvps.org/winhelp2002/hosts.htm)).