Question

When I try to load my Lync Controls in a Silverlight application I get the error: Client is not trusted. This error doesn’t appear when I debug the Silverlight application without the corresponding web project.

This is the code that generates the error:

LyncClient l = LyncClient.GetClient();

This is the error:

AutomationServerException was unhandled by user code
Client is not trusted

What must I do?

Answer 1

This error usually happens because the web site that your Silverlight application is running under isn’t in the “Trusted Sites” browser zone. Adding to Trusted Sites should fix it.

Edit: The walkthrough here states:

Security settings for Microsoft Lync
2010 SDK applications require that the
host URL for Lync Control Silverlight
applications be added to the Trusted
sites list in Microsoft Internet
Explorer. For information about adding
to the Trusted sites list, see Working with Internet Explorer 6 Security Settings.