Develop application for windows 10 using C#

Devendra Sarang

I need to develop windonws 10 desktop application that controls what happens when a user clicks on a hyperlink from certain applications in a blacklist.

When a URL is clicked within an application, the user action causes a browser to be launched with a URL.

If application is on that blacklist, application will prevent browser from showing the webpage.

application will display a message to say that it blocked the operation.

3 Replies

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Kamil Krupski6y ago
You need administrator privileges to edit the hosts file.
Devendra Sarang6y ago
@aashima khatoon

Getting access to path was denied at line

StreamWriter sw = new StreamWriter(path, true);
Sachin Singh6y ago
This is what i can think for now , though there are multiple APIs available like windows firewall API but you can use host file to block any site , though it is a solution that i can think by now, i will not recommend it .
private void BlockWebsite_Click(object sender, EventArgs e)
    {
        String path = @"C:\Windows\System32\drivers\etc\hosts";
        StreamWriter sw = new StreamWriter(path, true);
        String BlockMe= "\n 127.0.0.1 facebook.com";
        sw.Write(BlockMe);
        sw.Close();
        MessageBox.Show("Site Blocked");
    }
}