title: DummyNet error NDIS drivers install on Windows 7 x64
body: <p>I've download the current version of <a href="http://info.iet.unipi.it/~luigi/dummynet/">DummyNet</a> and according to <a href="http://info.iet.unipi.it/~luigi/dummynet/README">readme</a> I'm following these steps:</p>
  
  <blockquote>
    <p>Windows: INSTALL THE NDIS DRIVER</p>
    
    <ul>
    <li>open the configuration panel for the network card in use
      (right click on the icon on the SYSTRAY, or go to
      Control Panel -> Network and select one card)</li>
    <li>click on Properties->Install->Service->Add</li>
    <li>click on 'Driver Disk' and select 'netipfw.inf' in this folder</li>
    <li>select 'ipfw+dummynet' which is the only service you should see</li>
    <li>click accept on the warnings for the installation of an unknown
      driver (roughly twice per existing network card)</li>
    </ul>
  </blockquote>
  
  <p>But when I select 'netipfw.inf' and click OK the system return an error (unable to find any drivers for this device).</p>
  
  <p>Note that I've previously disabled the check control for digital signature typing on Start->Exec the following command:</p>
  
  <pre><code>bcdedit /set nointegritychecks ON
  </code></pre>
  
  <p>and reeboting the system.</p>
  
  <p>I need to be able to solve this issue because when I try to execute some dummynet command the system returns:</p>
  
  <pre><code>my_socket failed 2, cannot talk to kernel module
  ipfw: socket
  </code></pre>
  
  <p>My network card is a NVIDIA nForce integrated on my mother board Asus Striker II.</p>
  
  <p>Have you any idea to solve the problem? Thanks.</p>