The problem is related to the fact that the application wasn't configured to run on Windows 7. It was developed and made available for Windows 98, ME, 2000, and XP. This means that the problems are influenced by the security rights. To fix this, backup the address book, uninstall the application, log-in on Windows with an Administrator, then install the application using Run As Administrator. You also need to do this when the program is started for the first time.