How to create web page with basic authentication

All we need is an easy explanation of the problem, so here it is.

I want to create ASP.NET web page which will prompt me basic authentication popup where in I will enter credentials.
I tried adding below lines of code in PreInit and PreLoad event handlers but still it is not showing me basic authentication popup.

    protected override void OnPreInit(EventArgs e)
            Response.Headers.Add("WWW-Authenticate", "Basic");

protected override void OnPreLoad(EventArgs e)
    Response.Headers.Add("WWW-Authenticate", "Basic");
    Response.AppendHeader("WWW-Authenticate", "Basic");

Can you please help me with this ?
Thanks in advance.

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

You would typically do this in IIS. See:

The short version:

  • ensure that the basic authentication feature is enabled on your server
  • disable anonymous authentication in your site and enable basic authentication

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from or, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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