title: Is it possible to send additional HTTP headers to web services via New-WebServiceProxy
body: <p>A web service I need to interact with (often manually for testing) requires an extra HTTP header on certain requests. Quick manual testing works quite great with PowerShell's <code>New-WebServiceProxy</code> but so far I haven't found an option to add another HTTP header to the request.</p>
  
  <p>Is there something for that?</p>