Do I have to uninstall DialogLink 4.0 to install DialogLink 5?
No. DialogLink 5 is the upgrade to DialogLink 4.0. It has all the features of DialogLink 4.0, plus enhancements and new features. You do not have to uninstall DialogLink 4.0 to install and run DialogLink 5. If you wish to remove the DialogLink 4.0 listing in your Windows Start menu, however, you may uninstall DialogLink 4.0.