If you are on a broadband connection that goes through a router, you might want to check your router setup. Sometimes routers have parental controls that allow for site blocking.

There are some other options, but it would help to know why you want to block access to the site. Who do you want to prevent from accessing the site? How much technical knowledge and system access do they have?

dThank you for your reply. The PC it's on a boradband connection but the router has no parental control. What I'm trying to block is couple onlien casino's and poker sites. My good friend has gambling problem and not much computer knowledge. So I want to prevent him from playing poker online, cause he can't control his habit. So I'm trying to help him. Thanks for your time and help again.

As nice an idea as that is, unfortunately there are just too many sites to block. If you block the sites that he goes to frequently and he truely has an addiction problem, he will most likely just end up going to another poker site. I don't believe that this is an issue that you can resolve with tech.

Keeping all that in mind, it is possible to prevent sites from loading up properly based upon their domain name. Check out information about creating a Hosts file.

Thank you for the quick reply as usual. I was hoping that there would be a program that would allow me to block specific URLs but oh well. Thank you again. I'll read up on the Host File subject