Add-ins that are being set to Inactive

Question

This pertains to Outlook 2013 in this particular case, but may apply to other 2013 products.
It's not just one add-in, but we have seen a few add-ins that go from a happy, Active add-in to a sad, unused Inactive add-in.
If I have a user who's add-in is getting disabled and they get prompted in their client with the "Add-in problem:  A problem was detected with an add-in and it has been disabled.  [View disabled add-ins...]" the solution is simple enough,
view those add-ins and if the one you are having trouble with is there, click the option to "Always enable this add-in"
The trouble I'm having is that not every user gets that prompt for some reason.  And we're seeing a few users who are losing their room finder because the Microsoft Exchange Add-in is being disabled. 
So.. if I have a "good" user who gets the warning, it's a matter of enabling their add-in and restarting the client, when it disables it again they get the prompt and we just tell it not to disable.  The "bad" users however we enable
and restart and they never see the warning/option to always enable.  We can enable the add-in again, but for these select few, it keeps disabling them without saying a word.
I guess my 2 big questions are:
1- Why doesn't that option show up for everybody?  I'd like to be able to tell our support teams here to cue in on that prompt after enabling, but when it isn't there consistently it is not an effective solution.
2 - Where or how could I manually have that on the list of add-ins we never disable?  I have found a few mentions of the registry settings, but nothing I see in my registry leads me to believe it will be a simple "find the Microsoft Exchange Add-in"
setting and change the value X to Y and you are done.  
I'd like to figure out where to point the user / support to toggle it on their own and I have seen mention of a button under File - that lets you see disabled add-ins, but I don't see that in my client (Outlook 2013 and I'm on the latest) and while a registry
fix might work, it's not very end user driven or ideal.. but I'd take that over nothing.

Answer 1

Hi,
I'm not sure why the option doesn't show up for everybody, however, if you want to specify which add-ins are always enabled, we can use the Outlook Group Policy template (Outlk15.admx) to set the Group Policy option:
List of managed add-ins.
The policy is under:
User Configuration\Administrative Templates\Microsoft Outlook 2013\Miscellaneous
You will need to find the programmatic identifier (ProgID) for COM add-ins. To obtain the ProgID for an add-in, use Registry Editor on the client computer where the add-in is installed to locate key names under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Outlook\Addins
or HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Outlook\Addins.
For more information, please refer:
Plan feature customizations in Outlook 2013
http://technet.microsoft.com/en-us/library/ff631135.aspx
Use Group Policy to enforce Office 2010 settings
http://technet.microsoft.com/en-us/library/cc179081(v=office.14).aspx
Note: This link is for Office 2010, but it also applies to Office 2013.
Hope this helps.
Regards,
Steve Fan
Forum Support
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