How to call the default Windows credential dialog for Internet proxy in .NET?

Question

My .NET application uses WebService, and in some clients I get HTTP 407 (proxy authentication required). So I need to ask the user to enter their user credentials / password.

So how to use the default windows dialog? (see below)

Is this possible in .NET? Or will I need to create my own form?

Proxy Credential Dialog Box http://grab.by/23II

Answer 1

Look here

It contains a class that will receive the Credential dialog box and an example of its use.