Microsoft Exchange Add-in (UmOutlookAddin.dll / UmOutlookAddin.FormRegionAddin) will not activate for one user

Article
2013-12-17

Question

_{Tuesday, December 17, 2013 10:15 PM}

Version: Microsoft Outlook 2013 Pro Plus
OS: Windows 8 Enterprise
Issue: Microsoft Exchange Add-in stays in "inactive" state, even after being re-enabled
Upgrade Status: PC upgraded from Windows 7; Office upgraded from 2010
End User Experience: Exchange UM voicemails do not have player form (shows as attachment); Meeting Room Finder missing from appointment form; Possibly more
Steps Taken: Attempted to enable add-in from COM Addin-ins dialog; Removed Office 2010; Repaired Office 2013; Deleted registry key "UmOutlookAddin.FormRegionAddin" from HKCU\Software\Microsoft\Office\15.0\Outlook\Addins; Rebooted; Verified HKLM\SOFTWARE\Microsoft\Office\Outlook\Addins\UmOutlookAddin.FormRegionAddin was the same as on other PCs**.**

More information:
The Exchange add-in, which is installed with each version of Office, worked successfully on this PC for three months after Windows 8 / Office 2013 upgrade until it was noticed today it wasn't working. The Office 2010 version worked for two years prior to that with no issues. This is connecting to an on-premises Exchange server. No other user is having this issue. No matter how many times I check the add-in box to enable it, it is inactive again on restarting Outlook. I cannot find a way to force it to activate. No errors or crashes are being reported. Outlook is not in safe mode. All other add-ins, including the Lync 2013 add-in (another default add-in) are working.

EDIT: add to "steps taken" that we tried creating a new Outlook profile. No luck.

All replies (25)

_{Monday, August 11, 2014 6:40 PM ✅Answered}

I called Microsoft support and found the solution. We applied some hotfixes for Outlook, reset the load behavior value to 2 in the registry, and now it's working again.

http://support.microsoft.com/kb/2882991

http://support.microsoft.com/kb/2880477

_{Wednesday, December 18, 2013 2:55 AM}

Hi,

Please make sure you are opening Outlook by "Run as administrator", then try to enable the add-in again.

I've seen a same issue which was resolved by removing and re-installing the add-in, please have a try.

Thanks,

Melon Chen

Forum Support

Come back and mark the replies as answers if they help and unmark them if they provide no help.

If you have any feedback on our support, please click here

_{Wednesday, December 18, 2013 3:53 AM}

This is in a domain and the user is a standard user, so there isn't really a point for running as admin as that would be a different user account. I can temporarily add them to the administrators group, but it would only be temporary.

I cannot reinstall the add-in because, as stated in the top post, it is a part of the Outlook 2013 default installation. It is the Exchange add-in. I already tried repairing.

_{Friday, December 20, 2013 3:10 AM}

Hi,

I suggest you try to disable all other add-ins and only enable the Exchange add-in, check if other add-ins are interfering with the Exchange add-in. Some add-ins from Security Programs may affect the Exchange add-in.

I will provide further assistance as you need.

Thanks,

Melon Chen

Forum Support

Come back and mark the replies as answers if they help and unmark them if they provide no help.

If you have any feedback on our support, please click here

_{Friday, December 20, 2013 3:34 PM}

I tried disabling all other add-ins, but the Exchange add-in still does not load after restart.

_{Friday, December 20, 2013 3:40 PM}

I temporarily added the user to the Administrators group and when Outlook was then run as an admin under the user account, the Exchange add-on worked. When I removed the administrator permission, Outlook stopped working. I can't permanently grant this user administrative rights and the add-on shouldn't require it, so progress was definitely made (thanks for the suggestion), but the workaround is not a solution. I need Outlook+Exchange to work under a standard user.

What's the next step in figuring out why this is happening?

_{Saturday, December 21, 2013 4:54 PM}

Did outlook disable it because it loaded or unloaded to slowly? I had that happen a few times then set up the group policy to always load it.

Diane Poremsky [MVP - Outlook]
Outlook & Exchange Solutions Center
Outlook Tips
Subscribe to Exchange Messaging Outlook weekly newsletter

_{Wednesday, December 25, 2013 8:51 AM}

Hi,

Just checking in to see if the information was helpful. Please let us know if you would like further assistance.

Thanks,

Melon Chen

Forum Support

Come back and mark the replies as answers if they help and unmark them if they provide no help.

If you have any feedback on our support, please click here

_{Tuesday, December 31, 2013 2:02 AM}

Hi,

To add Diane's response, we can refer to the link below, learn from Performance criteria for keeping add-ins enabled:

http://msdn.microsoft.com/en-us/library/office/jj228679.aspx#ol15WhatsNew_AddinDisabling

Thanks,

Melon Chen

Forum Support

Come back and mark the replies as answers if they help and unmark them if they provide no help.

If you have any feedback on our support, please click here

_{Friday, January 3, 2014 1:47 AM}

Hi,

Just checking in to see if the information was helpful. Please let us know if you would like further assistance.

Thanks,

Melon Chen

Forum Support

Come back and mark the replies as answers if they help and unmark them if they provide no help.

If you have any feedback on our support, please click here

_{Monday, January 6, 2014 1:40 AM}

Hi,

I'm marking the reply as answer as there has been no update for a couple of days.

If you come back to find it doesn't work for you, please reply to us and unmark the answer.

Thanks,

Melon Chen

Forum Support

Come back and mark the replies as answers if they help and unmark them if they provide no help.

If you have any feedback on our support, please click here

_{Monday, January 6, 2014 3:45 AM | 2 votes}

I've been on vacation (it's the holidays, you know) so haven't had time to look at any of the solutions. It really annoys me to no end when other people mark threads as answered. From the many times I've stumbled around in these forums looking for answers to problems I've had, i can tell you that the "answered" marking is basically useless because most of the time when non-thread owners mark an answer, it's due to inactivity and not because it's the correct solution. So then when others go in, they look at the answer and, lo, it's wrong and unhelpful. I guess you guys have a quota or something, but really it does a disservice to everyone when you mark threads as answered that are not answered. I really wish you wouldn't do that.

_{Monday, January 6, 2014 3:52 AM}

"Did outlook disable it because it loaded or unloaded to slowly? I had that happen a few times then set up the group policy to always load it."

That does not appear to be the case as there is no indication from Outlook that an add-in was performing poorly, as is shown in the KB on that subject. It just is not enabled. No warning, no error, no message. When I try enable to it, it acts like it loads, but nothing happens. Then when I restart, it's disabled again, with no warnings.

Again, this is the Exchange add-in, which is bundled into Outlook. There are no third party add-ins installed. I feel like we're barking up the wrong tree here. Is there any way to get extra debugging info about the add-in loading process?

_{Monday, January 6, 2014 4:07 AM}

>> Again, this is the Exchange add-in, which is bundled into Outlook.

Yeah, but Outlook is non-discriminatory. You'd think they could either make outlook smart enough not to disable the addins it installs or Microsoft wrote (this one, bcm, CRM) or make them better so outlook doesn't have to disable them.

Did you check the event viewer? It should say it disabled the addin and give some clues as to why.

Diane Poremsky [MVP - Outlook]
Outlook & Exchange Solutions Center
Outlook Tips
Subscribe to Exchange Messaging Outlook weekly newsletter

_{Monday, January 6, 2014 4:39 AM}

Thanks, Diane. I did check the event viewer and there was no information that I recall. I will double check on Monday, but I'm pretty sure it doesn't even note that it was disabled. I checked the Application log. Does Outlook put it some place else, perhaps?

_{Monday, January 6, 2014 4:48 AM}

Yes, Application. Outlook wants to disable my Exchange addin - http://screencast.com/t/YDXVXBTMf - every warning in that list is outlook trying to disable the Exchange or Social connector for opening to slowly or for closing too slowly.

Diane Poremsky [MVP - Outlook]
Outlook & Exchange Solutions Center
Outlook Tips
Subscribe to Exchange Messaging Outlook weekly newsletter

_{Monday, January 6, 2014 10:44 PM}

I went in and re-enabled the Exchange add-in, then restarted Outlook. There are no error messages, but there is an event ID 45 which shows all the add-ins that were loaded. No information on why Exchange add-in is missing, though.

Outlook loaded the following add-in(s):


Name: Lync Meeting Add-in for Microsoft Office 2013
Description: Lync Meeting Add-in for Microsoft Office 2013
ProgID: UCAddin.LyncAddin.1
GUID: {A6A2383F-AD50-4D52-8110-3508275E77F7}
Load Behavior: 3
HKLM: 1
Location: C:\Program Files\Microsoft Office\Office15\UCAddin.dll
Boot Time (Milliseconds): 63

Name: Outlook Social Connector 2013
Description: Connects to social networking sites and provides people, activity, and status information.
ProgID: OscAddin.Connect
GUID: {2163EB1F-3FD9-4212-A41F-81D1F933597F}
Load Behavior: 3
HKLM: 1
Location: C:\Program Files\Microsoft Office\Office15\SOCIALCONNECTOR.DLL
Boot Time (Milliseconds): 218

Name: OneNote Notes about Outlook Items
Description: Adds Send to OneNote and Notes about this Item buttons to the command bar
ProgID: OneNote.OutlookAddin
GUID: {93E5752E-B889-47C5-8545-654EE2533C64}
Load Behavior: 3
HKLM: 1
Location: C:\Program Files\Microsoft Office\Office15\ONBttnOL.dll
Boot Time (Milliseconds): 156

Name: Microsoft SharePoint Server Colleague Import Add-in
Description: The Add-in allows Microsoft SharePoint Server to import colleague suggestions based on your Outlook content
ProgID: ColleagueImport.ColleagueImportAddin
GUID: {EFEF7FDB-0CED-4FB6-B3BB-3C50D39F4120}
Load Behavior: 3
HKLM: 0
Location: C:\Program Files\Microsoft Office\Office15\ADDINS\ColleagueImport.dll
Boot Time (Milliseconds): 47

Name: Microsoft Access Outlook Add-in for Data Collection and Publishing
Description: The Add-in allows Microsoft Access to integrate with and enable automated scenarios around Data Collection and Publishing around
ProgID: AccessAddin.DC
GUID: {5B7AB748-6D2E-4827-90A5-32B426DC61B7}
Load Behavior: 3
HKLM: 0
Location: C:\Program Files\Microsoft Office\Office15\ADDINS\ACCOLK.DLL
Boot Time (Milliseconds): 343

_{Tuesday, January 7, 2014 3:00 AM}

Wow, your addins are loading fast. :)

Have you checked compatibility mode settings on outlook.exe?

Diane Poremsky [MVP - Outlook]
Outlook & Exchange Solutions Center
Outlook Tips
Subscribe to Exchange Messaging Outlook weekly newsletter

_{Friday, January 10, 2014 3:23 PM}

I just checked and it is not set to run in any sort of compatibility mode. That was something I never thought of though! Good suggestion.

Any other suggestions? :-/ I'm starting to lose hope. Don't really want to burn a support case on this, but I also don't want to reimage the PC just because of Outlook.

_{Saturday, January 11, 2014 6:09 AM}

I'll see what I can find out. I remember a similar situation about a year ago but can't recall the resolution.

I forget... have you tried running repair?

Diane Poremsky [MVP - Outlook]
Outlook & Exchange Solutions Center
Outlook Tips
Subscribe to Exchange Messaging Outlook weekly newsletter

_{Tuesday, November 18, 2014 12:46 PM}

Check HKCU\software\policies\microsoft\office\15.0\outlook\security\trustedaddins

Delelete this key and it works :)

Then look your GPO

_{Wednesday, November 11, 2015 8:08 PM}

Thanks for sharing your solution; however, I could use a bit more clarity on the location of the load behavior value you reference.

_{Thursday, June 23, 2016 7:58 AM}

Hi,

Location in registry depends on your IT environment

The location (in my case) is here:

HKLM\SOFTWARE\Microsoft\Office\15.0\ClickToRun\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Office\Outlook\Addins\UmOutlookAddin.FormRegionAddin
LoadBehavior REG_DWORD 0x3
CommandLineSafe REG_DWORD 0x0
FriendlyName REG_SZ Microsoft Exchange Add-in
Description REG_SZ Exchange support for Unified Messaging, e-mail permission rules, and calendar availability.

But in general it is located in:

x64:
HKLM\SOFTWARE\Wow6432Node\Microsoft\Office\Outlook\Addins\UmOutlookAddin.FormRegionAddin
LoadBehavior REG_DWORD 0x3

x86:
HKLM\SOFTWARE\Microsoft\Office\Outlook\Addins\UmOutlookAddin.FormRegionAddin
LoadBehavior REG_DWORD 0x3

LoadBehavior values ans details can be found here

https://msdn.microsoft.com/en-us/library/bb386106(v=vs.110).aspx

Regards

_{Saturday, October 28, 2017 7:14 AM}

I have run into the same issue with Outlook 2016 64 bit (Office 365 ProPlus) - Windows 10 Enterprise 1709 64 bit - Surface Book. With some suggestions from this forum and additional troubleshooting, I may have found a fix. Not sure if this will work in all situations but worth a try since it is easy, does not require changing registry, and does not always require running as an admin.

Launch Outlook as Admin
Disable Microsoft Exchange Add-in (UmOutlookAddin.dll)
Close Outlook
Launch Outlook normally (Non-Admin)
Enable Microsoft Exchange Add-in (UmOutlookAddin.dll)
Close Outlook
Launch Outlook normally (Non-Admin)
Verify Microsoft Exchange Add-in (UmOutlookAddin.dll) is still enabled
Close Outlook
Restart OS
Launch Outlook normally (Non-Admin)
Verify Microsoft Exchange Add-in (UmOutlookAddin.dll) is still enabled

After several restarts it has been running fine. I even use Outlook as a startup item and did not need to change any settings there.

_{Wednesday, August 21, 2019 7:01 PM}

I couldn't agree more. This is so true.

Share via

Microsoft Exchange Add-in (UmOutlookAddin.dll / UmOutlookAddin.FormRegionAddin) will not activate for one user

Question

All replies (25)

Additional resources