When you encounter that message, it actually means that you will have to run the program exactly as it's specified. The message is for applications that are deployed with Demo license. To avoid seeing that message, you will have to acquire the full version of the product. A full version won't display any nag screens, notifications or alerts. Use the software then go to Help > About and note all the contact options. Get in touch with the developer to find out how can you buy the product to launch the software normally.