title: How to set the maximum TCP receive window size in Windows 7?
body: <p>I already tried to set the following registry keys:</p>
  
  <ul>
  <li>GlobalMaxTcpWindowSize to 2KB (<a href="http://technet.microsoft.com/en-us/library/cc957546.aspx" rel="nofollow">MSDN</a>) </li>
  <li>TcpWindowSize for each interface to 2KB (<a href="http://technet.microsoft.com/en-us/library/cc938219.aspx" rel="nofollow">MSDN</a>)</li>
  </ul>
  
  <p>Unfortunately, I seems that these registry keys have no effect (also after a reboot).
  I tried testing using iperf which prints the default TCP window size on startup. In my case it printed 8KB before these modifications and 8KB afterwards...</p>
  
  <p>Any hints, ideas are welcome!
  Thanks in advance,
  Jonas</p>