3.5.10 - About dialog
As you can see in the above image, the About Dialog not only gives you information about the version of Oso XML Merge you are using, but it also provides you with information about the licence which is currently installed.
If you are still in the evaluation period and have not registered your copy of Oso XML Merge, the two buttons in the bottom left of the dialog will be labelled 'Buy Now!' and 'Register...' respectively. After registration they will be labelled 'Upgrade Licence...' and 'Reregister...' as shown above. Essentially though, they still perform the same function: The first will open the Oso Corporation online store in your web browser, while the second will open the Licensing Wizard which will allow you to change your current licence.