From: DeskNow Knowledge Base
http://www.desknow.com/kb/

How can I test what happens after the trial period expires?
http://www.desknow.com/kb/idx/12/085/article/

Simply use this command in the Administration API, by opening the following URL in your browser:

 

http://www.mydomain.com/desknow/admin?pwd=password&action=main_el

 

Where password is the admin password.

NB if the trial period is not expired yet, you can reenebling the features by restarting DeskNow.