Outlook 2013/2016, error when opening a shared item with an attachment – “Sorry we’re having trouble…”

If you receive this error when trying to open a shared item in Outlook:

Then it could be because of compatibility between Outlook versions and the way the attachment is embedded.

To resolve this you need to make a registry change on the older version of Outlook:



Assume that a meeting request that has table content, embedded images, and attachments is created in Microsoft Outlook 2016. Then, you receive the meeting request in Outlook 2013. In this situation, the tables, images, and attachments are missing or corrupted in the received meeting request.


To fix this issue, install the December 6, 2016, update for Outlook 2013 (KB3127975), and then follow the steps to enable the functionality to allow the display of HTML calendar items, meeting requests, and other calendaring content for compatibility with Office 16 HTML calendaring.

Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.

  1. Exit all Microsoft Office applications.
  2. Start Registry Editor:
    • In Windows 10, go to Start, enter regedit in the Search Windows box, and then select regedit.exe in the search results.
    • In Windows 8 or Windows 8.1, move your mouse to the upper-right corner, select Search, type regedit in the search text box, and then select regedit.exe in the search results.
    • In Windows 7 or Windows Vista, go to Start, type regedit in the Search programs and files text box, and then select regedit.exe in the search results.
  3. Locate and then select the following registry subkey:
  4. On the Edit menu, point to New, and then select DWORD Value.
  5. Type AllowHTMLCalendarContent, and then press Enter.
  6. In the Details pane, press and hold (or right-click) AllowHTMLCalendarContent, and then select Modify.
  7. In the Value data box, type 1, and then select OK.

    Note This functionality is OFF by default. This functionality does not allow composing HTML calendar content. If you set the value of the registry key to 0, the functionality is disabled. If you set the value to 1, the HTML calendar content is displayed correctly.

  8. Exit Registry Editor.

SBSFaxService attachment problem

The post explains how to resolve the problem with Outlook not allowing you to save or open a fax.tif attachement directly from the SBSFaxService e-mail.

You recieve the message:

Cannot create file: FAX.TIF.  Right click the folder you want to create the file in, and then click
properties on the shortcut menu to check your permissions on the folder.

This is because the location that Outlook is trying to temporarily store the file in is invalid and no longer exisits.

To correct the problem perform the following steps:

  1. Click Start >  Run and type “regedit”
  2. Browse/add the path HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\12.0\Outlook\Security
  3. Modify/create the key “OutlookSecureTempFolder” and ensure it points to:  “C:\Documents and Settings\<user name>\Local Settings”
  4. Close Outlook and open it back up for the changes to take effect.

Please 12.0 refers to Office 2007, 11.0 Office2003, 10.0 Office XP (2002), 9.0 Office 2000