title: Proxy connection while browser is running
body: <p>I have to make application that will connect/disconnect to proxy server even while browser is running. I found out that I can change some registry keys value.
  Here is my code in Visual Basic:</p>
  
  <pre><code>Imports Microsoft.Win32
  
  Public Class Form1
  
  Public Sub SetProxy() 
      On Error Resume Next
      Dim regkey1 As RegistryKey
      regkey1 = Registry.CurrentUser.CreateSubKey("Software\Microsoft\Windows\CurrentVersion\Internet Settings", RegistryKeyPermissionCheck.Default)
      regkey1.SetValue("ProxyServer", "ftp=10.8.0.1:808;http=10.8.0.1:808;https=10.8.0.1:808;socks=10.8.0.1:1080", RegistryValueKind.Unknown)
      regkey1.SetValue("ProxyEnable", True, RegistryValueKind.DWord)
      regkey1.Close()
  
      Label1.Text = "Connected to Disa's Proxy Server"
      Label1.ForeColor = Color.Green
  End Sub
  
  
  Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
      On Error Resume Next
  
  
      SetProxy() 
  End Sub
  
  Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
      On Error Resume Next
      Dim regKey As RegistryKey
      regKey = Registry.CurrentUser.CreateSubKey("Software\Microsoft\Windows\CurrentVersion\Internet Settings", RegistryKeyPermissionCheck.Default)
      regKey.SetValue("ProxyEnable", False, RegistryValueKind.DWord)
      regKey.Close()
  
      Label1.Text = "Disconnected from Disa's Proxy Server"
      Label1.ForeColor = Color.Red
  End Sub
  End Class
  </code></pre>
  
  <p>This code works well on Firefox, but doesn't on IE and Chrome. 
  While IE is opened it prevents all registry changes in <code>Internet Settings</code>. Chrome needs restart or opening the Proxy settings to reload proxy information.
  How to force browers to reload proxy configuration?</p>
  
  <p><strong>EDIT</strong>
  Example: <a href="http://www.chris-pc.com/proxy/" rel="nofollow">ChrisProxy</a></p>