Why do I get the error message "Class is not licensed for use"?

This error occurs when the .lic file is not in the same folder as the registered .ocx file. Do a search on your machine for ct*.ocx. You may see more than one copy of a control at different locations.  Remove all the additional copies except for the one that you use.  Place the .lic file in the same folder as the .ocx file and re-register the control.