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My Mailock Outlook Add-in keeps disabling itself

Why does this happen?

Microsoft has some security measures in place to prevent slow add-ins from running inside Outlook. However, in many cases, add-ins without fault are being mistakenly marked as slow and disabled by Outlook. If this is not immediately corrected, Outlook may permanently disable them with no way to re-enable them via the user interface.

 What can I do about it?

Please run through the following steps to fix this issue:


  1. Be an Administrator

    Make sure you run Outlook as an Administrator when you enable the add-in (Right click - Run as Administrator)

  2. Force Outlook to always enable the add-in

    By default, the Mailock Add-In installs with parameters that force Outlook to ‘Always enable this add-in’.

    You can check this setting and reset it if necessary.

    On the File tab, click "Manage COM Add-ins" under "Slow and Disabled COM Add-ins".

    You'll see a list of add-ins. Locate the Beyond Encryption entry and click Always enable this add-in.

  3. Changing the Load Behavior

  4. If the Add-In setting above is correct and the Mailock Add-In is still not loading when Outlook is opened, then it may be due to the registry setting that controls how the Mailock Add-In is loaded. The following steps detail the process you should follow to correct this registry setting.

    On the Outlook File tab click Options, Add-Ins and with the ‘Manage:’ selection set to ‘COM Add-Ins at the bottom of the page, click the ‘Go…’ button and select the Beyond Encryption Add-In from the resulting list.

    You will be able to see the current load behavior of the Mailock Add-In which should be set to "Load at Startup" like this:

    If load behavior is set to any state other than ‘Load at Startup, follow these steps:

    1. Open your Registry Editor. To do this, open your Windows Start menu and type "regedit".
    2. Go to HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins\Beyond Encryption
    3. Note what the LoadBehavior is set to. It will be a number like 0 or 1 or 3.

    If the LoadBehavior key is anything other than "3" then follow these steps:

    1. Close Outlook (and all other Office programs to be sure). Make sure the "OUTLOOK.EXE" process is not running in the Windows Task Manager
    2. Open the registry editor again. Double-click the registry key to edit it.
    3. Change the Load Behavior to "3." Close the registry editor.
    4. Re-open the registry editor to ensure "3" is still there.
    5. Open Outlook. The Mailock Add-In should now load automatically at startup and the blue Mailock ‘Compose New Secure Email’ button should appear in the top left hand corner of your Outlook ribbon.

    If you would like further information on LoadBehavior and the values that it can be set to, the following MSDN article covers this: