I've checked and it appears that the application has been discontinued. There is no help guide or troubleshooting document to configure the software. However, Pop-Up Stopper Pro should have a built-in Help section where you can learn how to add installed applications to the Exclusion list. Also, avoid using this since it's obsolete now. Install a modern antivirus system that features automatic pop-up blocking and other security modules designed to enhance the security of your operating system.