If your product is not registered, you can evaluate Modbus Steps during 30 days without limitation of functionalities. See Licensing options to learn more.
If you are in the evaluation period, the license status window will show you the days left before the end of the evaluation.
The button Activate Professional Edition… will be enabled and the Modbus Steps Status windows should display this:
If your version is activated, the Modbus Steps Status windows should display this:
See Also
Modbus Steps Licensing Options