title: Why does my service reference only generate asynchronous methods?
body: <p>I have a Service Reference (not a web reference) in VS2008 to a web service that I did not write. The reference works, but only asynchronous versions of each method are available for me to use.</p>
  
  <p>In the "Configure Service Reference" dialog, the "Generate asynchronous operations" is checked and grayed out.  First of all, I thought checking this box generated async methods in addition to, not instead of, blocking methods.  Second, I've never seen it grayed out before.</p>
  
  <p>I have experience writing both sides of both WCF and ASMX-era web services and have never seen this before.  What could be causing this?</p>
  
  <p>Thanks.</p>