The Upgrade Limit verifies the serial number of a previous version of the product.
See the Serial Numbers and the Registration Process for more details.
When the license is validated DeployLX checks the serial number for the previous version provided by the user. If the provided serial number is not valid then the license validation fails.
The settings for the upgrade limit must match the Serial Numbers settings of the original license.
The forms may be customized or completely replaced to fit your specific application style.
Customize the colors and icons of the forms by selecting the Theme button from the License Tab on the Ribbon.
See the How to Create a Custom Form topic for details on replacing or customizing the form.