When starting up Outlook, the Out'n About add-in is disabled. If an admin attempts to reinstall the Out'n About client software, the problem persists.
This is most likely due to an issue with Outlook 2013 Resiliency - when you install over a disabled on inactive addin it cannot be enabled correctly.
The solution is documented on this blog article. Follow their instructions on deleting certain registry entries.
If above solution does not solve the issue, follow these additional steps:
- Log in as an Admin with full rights
- Launch Outlook - Navigate to File -- Options -- Addins -- Com Addins
- Delete the Out'n About addin
- Reinstall most recent version of Out'n About
If above solution does not solve the issue, change the ‘load behavior’ to 3 in the registry (it may be set at 0). - Thanks to Christopher for this solution.