Symptom
When starting Outlook 2013 or Outlook 2016, this information bar might be displayed saying “A problem was detected with an add-in and it has been disabled”:
Clicking on the “View Disabled Add-ins…” button shows a form with the list of add-in as well as how each add-in impact Outlook performance:
Sometimes even if you put the add-in into the “Always enable this add-in” list, it is still flagged as “Inactive” even with a reboot of Outlook.
It may be see that the outlook splash screen stops at loading add-ins, and Outlook is automatically closed after that. Another variant is that Outlook may keep on loading add-ins, but it Outlook never completes loading.
Cause
Outlook 2013 and Outlook 2016are less tolerant to long add-in load time compared to earlier Outlook revisions.
Resolutions
Option 1: Temporary solution: Click on “Always enable this add-in”
Option 2: Create a registry key to force Outlook to never disable RC Add-in:
- Open Registry Editor
- Go to this key:
| Outlook 2013 |
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\15.0\Outlook\Resiliency\AddinList] "AOP.RC.ResourceFinder.Addin"=dword:00000001
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Outlook\Addins\AOP.RC.ResourceFinder.Addin] "LoadBehavior"=dword:00000003
[HKEY_LOCAL_MACHINE\Software\Microsoft\Office\Outlook\Addins\AOP.RC.ResourceFinder.Addin] "LoadBehavior"=dword:00000003
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook\Resiliency\DisabledItems]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook\Resiliency\DisabledItems]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook\Resiliency\CrashingAddinList]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook\Resiliency\CrashingAddinList]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook\Resiliency\DoNotDisableAddinList] "AOP.RC.ResourceFinder.Addin"=dword:00000001
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook\Resiliency\NotificationReminderAddinData] "AOP.RC.ResourceFinder.Addin\dtype"=dword:00000000
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Resiliency\NotificationReminderAddinData] "AOP.RC.ResourceFinder.Addin"=dword:967a844d |
| Outlook 2016 |
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook\Resiliency\AddinList] "AOP.RC.ResourceFinder.Addin"=dword:00000001
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Outlook\Addins\AOP.RC.ResourceFinder.Addin] "LoadBehavior"=dword:00000003
[HKEY_LOCAL_MACHINE\Software\Microsoft\Office\Outlook\Addins\AOP.RC.ResourceFinder.Addin] "LoadBehavior"=dword:00000003
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Resiliency\DisabledItems]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Resiliency\DisabledItems]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Resiliency\CrashingAddinList]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Resiliency\CrashingAddinList]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Resiliency\DoNotDisableAddinList] "AOP.RC.ResourceFinder.Addin"=dword:00000001
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Resiliency\NotificationReminderAddinData] "AOP.RC.ResourceFinder.Addin\dtype"=dword:00000000
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Resiliency\NotificationReminderAddinData] "AOP.RC.ResourceFinder.Addin"=dword:967a844d |
Please refer to this article for more details.
- Create a key (right click ⇒ New ⇒ DWORD (32-bit) Value) with name based on the backend and Outlook versions:
- RC 3.7 and 3.7.10 revisions (32-bit Outlook): ResourceFinder.Connect
- RC 3.8, RC 3.7 and 3.7.10 revisions (64-bit Outlook): Add-On-Products.ResourceFinder
- New Add-in version 4.0 (both 32-bit and 64-bit): AOP.RC.ResourceFinder.Addin
- Right click on the created key, select [Modify] and enter “1” into Value data field:
Figure 1 - RC 3.7 and RC 3.7.10 (32-bit Outlook)
Figure 2 - RC 3.8
Figure 3 - RC 3.7 and RC 3.7.10 (64-bit Outlook)
Figure 4 - New Add-in 4.0
- Click [OK] to finish.
Option 3: Disable Certificates for publisher and server on the client PC
Open Internet Explorer, go to Settings ⇒ Internet Options, select Advanced tab, and move to Security section.
Uncheck 2 options highlighted in the screenshot:
- Check for publisher’s certificate revocation
- Check for server certificate revocation ( requires restart)
Option 4: Disable Client Certificate Revocation (CRL) check on IIS
Please refer to this article for more details.
Properties
Applies to: RC 3.7, RC 3.7.10, RC 3.8, RC 4.0
Reference: TFS #5940; 28910; 18757
Knowledge base ID: 0043
Last updated: Mar 15, 2019
Rolf Szimnau
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