Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80070005

Solution that worked for me is to change user under which Application Pool is started (ApplicationPoolIdentity obviously has not enough rights to access COM object). http://stackoverflow.com/questions/17785063/retrieving-the-com-class-factory-for-component-error-80070005-access-is-de