I have received "E_NOINTERFACE" message. What should I do?

This message occurs if Interop.FREngine file from an older version used, while the newer version of the product is installed. If the application was compiled with one version of the interface then FREngine.dll library from another version is called, as a result, a call to another method could occur.

Recompile your application with Interop.FREngine.dll from the actual distribution.