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How can I disable the Slow and Disabled COM Add-ins to users in Office 365 Outlook? RRS feed

  • Question

  • Hi,

    Occasionally, our users would receive an exclamation point on top of their Outlook regarding a crashed or slow add-in.  How do I disable this notification to users or hide this from users, and let Outlook handle the problem silently via Group Policy?


    • Edited by DoBongSoon Thursday, October 17, 2019 8:37 PM
    • Moved by Perry-Pan Tuesday, October 22, 2019 5:18 AM
    Thursday, October 17, 2019 8:36 PM

Answers

  • Hi DoBongSoon,

    Do you still want to keep this add-in running but remove the notification?

    Outlook will protect the user experience by disabling an add-in it considers to be misbehaving. If the add-in is Always Enabled by the user, then Outlook displays a warning notification.

    Currently, as a workaround, please click “Options” and choose “Do not monitor this add-in for the next 30 days”.

    Besides, found this link about how to always enable slow add-ins for your reference.

    (Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)

    Regards,

    Perry


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    • Edited by Perry-Pan Monday, October 28, 2019 6:28 AM
    • Marked as answer by DoBongSoon Monday, October 28, 2019 5:26 PM
    Monday, October 28, 2019 6:28 AM

All replies

  • We can control “LoadBehavior” of this add-in via Registry.

    Normally, add-ins will locate in this path:

    Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Outlook\Addins

    Find the name of this add-in.

    For example, to disable the add-in, deploy this registry to all users:

    Path: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Outlook\Addins\<add-in name>

    Value Name: LoadBehavior

    Value Type: REG_DWORD

    Value Data: 0

    (Value 0 means the application never tries to load the VSTO Add-in automatically. Reference: LoadBehavior)

    Hope the information is helpful to you.

    Regards,

    Perry


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    • Proposed as answer by Perry-Pan Monday, October 21, 2019 8:52 AM
    Friday, October 18, 2019 2:20 AM
  • this article offers some related suggestions

    https://support.boyum-it.com/hc/en-us/articles/208245778-CRM-for-Outlook-Add-In-keeps-disabling


    Don [doesn't work for MSFT, and they're probably glad about that ;]

    • Proposed as answer by Perry-Pan Tuesday, October 22, 2019 5:09 AM
    Friday, October 18, 2019 4:37 AM
  • Just check if there are anything else I can do for you.

    If you need further assistance, please feel free to post back. If the reply works for you, it's recommended to mark it as answer.

    Have a nice day:)

    Regards,

    Perry


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Wednesday, October 23, 2019 5:05 AM
  • Thank you.  The suggestions helps, but I was looking more towards a solution that disables the notification or exclamation mark from users via GPO. 
    Friday, October 25, 2019 8:06 PM
  • I hope, you can't disable the notification. The notification displayed just because of the Outlook disables the particular add-in since the performance of the add-in affects other outlook processes. So you have the following ways to recover this problem.

    1. If you are the developer of the add-in, you can analyze what kind of the code that are triggered from the add-in when outlook startup which takes to load more time and fix (or improve) this code.

    2. If you use third party add-ins, you can set the LoadBehavior of the add-in, if you set LoadBehavior as 9, then the Outlook should not load this add-in in startup and add-in should be loaded when you try to use the add-in (Load on demand). 

    You can refer this post (Under LoadBehavior values): https://docs.microsoft.com/en-us/visualstudio/vsto/registry-entries-for-vsto-add-ins?view=vs-2019

    If you want to set this LoadBehavior value in all users registry, then you can use GPO to update registry values.

    Refer the below post to update registry value through GPO:

    https://www.morgantechspace.com/2015/01/how-to-deploy-registry-settings-via-group-policy.html

    Saturday, October 26, 2019 6:26 AM
  • Hi DoBongSoon,

    Do you still want to keep this add-in running but remove the notification?

    Outlook will protect the user experience by disabling an add-in it considers to be misbehaving. If the add-in is Always Enabled by the user, then Outlook displays a warning notification.

    Currently, as a workaround, please click “Options” and choose “Do not monitor this add-in for the next 30 days”.

    Besides, found this link about how to always enable slow add-ins for your reference.

    (Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)

    Regards,

    Perry


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    • Edited by Perry-Pan Monday, October 28, 2019 6:28 AM
    • Marked as answer by DoBongSoon Monday, October 28, 2019 5:26 PM
    Monday, October 28, 2019 6:28 AM
  • Glad to see that helps :)

    I will write a brief summary here for your information:

    [Request/Expectation:]

    ====================

    Want to remove this warning from Outlook client but keep the add-in running:

          

    [Solution Summary:]

    ====================

    Outlook will protect the user experience by disabling an add-in it considers to be misbehaving. If the add-in is Always Enabled by the user, then Outlook displays a warning notification.

    • Workaround 1: Click “Options” and choose “Do not monitor this add-in for the next 30 days”.
    • Workaround 2: Use Outlook’s resiliency logic to always enable a certain add-in. This needs to change certain registries.

         

    [Reference Links:]

    ====================

    Outlook’s slow add-ins resiliency logic and how to always enable slow add-ins


    • Edited by Perry-Pan Wednesday, October 30, 2019 5:29 AM
    Tuesday, October 29, 2019 1:05 AM