title: How do I modify my settings to allow VS2010 to load 3rd party XSD files from the "Unauthorized Zone"?
body: <p>I have opened a 3rd party XSD file in Visual Studio 2010 that imports namespaces from other schema files from the same 3rd party.</p>
  
  <p>In the XML editor view of the schema file, the xs:import element is underlined with the following error: Request for the permission of type 'System.Security.Permissions.FileIOPermission', mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.</p>
  
  <p>I read the following blog post: <a href="http://blogs.msdn.com/b/xmlteam/archive/2009/06/04/understanding-xml-schema-sets-in-the-xsd-designer.aspx" rel="noreferrer">http://blogs.msdn.com/b/xmlteam/archive/2009/06/04/understanding-xml-schema-sets-in-the-xsd-designer.aspx</a> which states that it's a security zone violation and Visual Studio places the schemas in the "Unauthorized zone" in the XML Schema Explorer.</p>
  
  <p>My question is - how do I change my security settings to allow these schemas to be referenced, or is there something I can do to make the schemas and namespaces associated with them "trusted"?</p>