title: Accessing SharePoint Web Services over Silverlight
body: <p>I have a problem to access SharePoint Webservice over Silverlight. </p>
  
  <blockquote>
    <p>An error occurred while trying to make a request to URI
    '<a href="http://sample:8000/_vti_bin/Authentication.asmx" rel="nofollow noreferrer">http://sample:8000/_vti_bin/Authentication.asmx</a>'.
    This could be due to attempting to
    access a service in a cross-domain way
    without a proper cross-domain policy
    in place, or a policy that is
    unsuitable for SOAP services. You may
    need to contact the owner of the
    service to publish a cross-domain
    policy file and to ensure it allows
    SOAP-related HTTP headers to be sent.
    Please see the inner exception for
    more details.</p>
  </blockquote>
  
  <p>Some questions:</p>
  
  <ol>
  <li>How do I correctly deploy clientaccesspolicy.xml over Sharepoint Designer? Simply open site in designer, add file and then publish?</li>
  <li>The site where clientaccesspolicy.xml should be deployed use forms authentication. I wasn't able to use Sharepoint Designer to publish there. Because of that, I created new zone for this site, which use Windows Authentication and published clientaccesspolicy.xml there. Both use same content database, didn't ?</li>
  <li>If clientaccesspolicy.xml will be published, how can I allow this file be accessed anonymously?</li>
  </ol>
  
  <p>Regards
  Anton Kalcik</p>