Hi
Thanks for your inquiry. Please check these points.
Make sure your call to SetLicense gets executed. Step through in the debugger.
Make sure your code does not catch and silence an exception thrown by Aspose.Words licensing code. For example, Aspose.Words will throw if it cannot find the license.
Make sure the input documents do not already have the evaluation message. Aspose.Words does not delete existing evaluation messages.
Make sure SetLicense is executed before you instantiate any Document object.