In these cases, the effect on the add-ins is minimal Outlook releases the remaining COM object references and shuts down, and Windows reclaims the memory when the Outlook process exits.įor some add-ins, the changes have a greater effect. At shutdown time, most add-ins release references to Outlook COM objects and clear memory that was allocated during the session. However, the effect of the change on an add-in by using this value depends on what the add-in does during shutdown events. To resolve this problem, you can disable the RequireShutdownNotification registry value.
This problem can occur if you have one or more add-ins configured to use the RequireShutdownNotification registry value. When you exit Microsoft Outlook, the time to shutdown completely may take longer than expected. Applies to: Outlook 2019, Outlook 2016, Outlook 2013, Microsoft Outlook 2010, Outlook for Office 365.Outlook may shutdown more slowly if an add-in is configured to use RequireShutdownNotification
