Your trial license key is:
5F5EBC6FE3B2E292EFC70F0CA49893A9B8FAE072ED92F9CBCD968E21A3ACAEDD
Put the following code snippet at the beginning of your applications:
OfficeComponent.Licensing.Word.LicenseManager.SetLicenseKey("5F5EBC6FE3B2E292EFC70F0CA49893A9B8FAE072ED92F9CBCD968E21A3ACAEDD")
If you see the copyright message after the trial key is set: