title: The ServicePointManager does not support proxies of * scheme
body: <p>I've encountered two different variations of this:</p>
  
  <p>"The ServicePointManager does not support proxies of proxy scheme"
  "The ServicePointManager does not support proxies of HTTPS scheme"</p>
  
  <p>I get this error when a client attempts to connect to our webservices through a proxy. I've encountered this problem with a few clients using proxies, though I have no idea what's causing it. The proxy is set with System.Net.WebProxy and default credentials.</p>
  
  <p>Using .Net 1.1, with Microsoft.Web.Services2.</p>
  
  <p>Any one know what could be causing this?</p>