title: How to stop Windows from TCP resetting on unrecognized SYN-ACK packets?
body: <p>Is there a way to stop a Windows host computer from sending RST packets when a SYN-ACK has been received without a preliminary SYN from the host?</p>
  
  <p>Is there a boolean registry entry for that? I prefer not to use external tools, but if it's the only solution please mention that.</p>
  
  <p>However, for my purposes it's okay to disable that mechanism only for specific IP addresses, network interfaces or even specific ports if there's no other way.</p>
  
  <p>I'm on Windows Server 2008 R2.</p>