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Error message: "A problem was detected with an add-in and it has been disabled."
Posted by Björn Meyn on 31 Jul 2018 09:27

Problem: After starting Outlook 2013 the error message "A problem was detected with an add-in and it has been disabled." appears and the MailStore Outlook Add-in is disabled.
The add-in is listed afterwards in the "Disabled Add-ins" section under "These add-ins decreased performance or caused Outlook to crash."

Solution: Unfortunately, Outlook 2013's mechanism to determine add-in startup time is not very reliable. Therefore the MailStore Outlook Add-in should be set to be activated permanently. The necessary steps are documented in this article under "Add-in resiliency":

https://msdn.microsoft.com/en-us/vba/outlook-vba/articles/support-for-keeping-add-ins-enabled

The ProgID of the MailStore Outlook Add-Ins is MailStoreOutlookAddin3.AddinModule

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