Hi All,

Now, I faced with a question from customers regarding to the next version of the software. It's more like an add-on module to the existing application and I don't know where to begin. How do I check if the customers have the right version before applying the new module? How would I protect and prevent (un-installing and re-installing) of the application from being use after trial periods? If anyone have gone through this process and don't mind passing ideas this way. TIA

M