QCBenPetersen
Enthusiast
Enthusiast

Outlook 2016 and Acrobat Reader DC

So I have been wrestling with this little issue for a while and figure i would throw it out there

Envirometn

Horizon: 7.5.1

UEM 9.4

Appstacks 2.14

Windows 10 LTSB 2016

I have adobe acrobat reader dc installed on the GM.  I then load office 365 from the appstacks.  If i open outlook and try to open a .pdf, it works the first few times.  Then after that I get a failed to load core .dll.  This only happens from Outlook.  If i preview the file in outlook it works just fine.  If i save it and then open it, works just fine, if i change it over to google chrome to be the default pdf viewer, works just fine.  I have tried all of the fixes from the adobe site of the house, registry fixes for protected mode do not seem to help.

I should just let it be and keep telling them to use chrome or save it then open it, but i figured maybe i can shut the complainer up.  Any help would be appreciated.

Thanks in advance

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6 Replies
AoSIt
Contributor
Contributor

Exactly the same issue here. Pretty much the same Versions of Horizon, UEM and Appvol. It seems Users are able to open .pdf files for a while until the "failed to load Core dll" appears. Only a relog seems to help.  AR DC is installed on the golden image and not deployed via appstack.

Any help is appreciated

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LibRick
Enthusiast
Enthusiast

Same issue here. Almost identical setup except Outlook 2016 is in the base image and appvols just handling the OST.

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gpenunuri
Enthusiast
Enthusiast

Same here.  Office and Reader is installed on the Base Image.  Seems to work after deleting the users writable profile but that's not the solution. 

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LibRick
Enthusiast
Enthusiast

I have found that if the user goes to apps & features then modify on acrobat reader then does a quick repair it fixes the issue. A bit annoying as you have to do it for everyone who has the issue but it's the best I've found so far.

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robgj821
Contributor
Contributor

Hi Guys

We have been plagued by this issue as well for quite sometime, though it was hard to pin down as it was happening to a lot of users but not all.

I finally figured it out.

If you add the Image path name and Command line fields to task manager and launch Adobe Reader, for the users who are getting this issue it will show it launching from their writables volume. However for users that weren't having this issue it was just launching from c:\program files (x86)\Adobe...

I assume that for the people affected at some point an auto-update ran and thus Adobe Reader became virtualized for them causing the failed to load core .dll error.

To fix I added the following lines to the writable snapvol.cfg file to exclude Adobe Reader:

# Adobe Reader

exclude_uwv_file=\Program Files (x86)\Adobe\Acrobat Reader DC

exclude_uwv_file=\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Adobe\Acrobat Reader

Hope this helps!

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mcdaidh
Contributor
Contributor

I had an issue with PDF files not opening from email attachments. We ended up having to disable Protected Mode in Acrobat Reader. This can be achieved using the following steps.

  1. Open Acrobat Reader, got Edit | Preferences (or press Ctrl+K).
  2. Navigate to Security (Enhanced) in the Categories list.
  3. Unselect "Enable Protected Mode at startup".
  4. Close both Acrobat Reader and Outlook.
  5. Open Outlook and try opening the PDF file. Should open without any issues.

There is also a Group Policy ADMX file you can download from Adobe to manage this using a GPO. Sorry, I don't have the link of hand.

Regards,

Hugh

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