Zarafa Outlook 2013 Support

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Zarafa does officially support Outlook 2013 starting with ZCP 7.1.6 final [42710].

Supported Versions

The compatibility component will only work with the following versions of Outlook:

  • Outlook 2013 RTM - 15.0.4481.1003
  • Outlook 2013 RTM - 15.0.4481.1508
  • Outlook 2013 RTM - 15.0.4505.1002
  • Outlook 2013 RTM - 15.0.4517.1003, since 7.1.5-42115
  • Outlook 2013 RTM - 15.0.4517.1509
  • Outlook 2013 RTM - 15.0.4535.1006, since 7.1.7-42779
  • Outlook 2013 RTM - 15.0.4535.1508
  • Outlook 2013 RTM - 15.0.4551.1004
  • Outlook 2013 RTM - 15.0.4551.1511
  • Outlook 2013 RTM - 15.0.4569.1503 since 7.1.8-44068

Unsupported click-to-run versions:

The version can be found by opening file details on the file (Right click Properties -> Details tab): 'C:\Program Files (x86)\Microsoft Office\Office15\OUTLOOK.EXE'.
The version information shown under Help within Outlook 2013 is not relevant.

The Outlook features that will be available after installation of the compatibility component are:

  • Opening shared calendars from Outlook menu ribbon ('Open Calendar')
  • Private items support (hides private items)
  • Public contact folder support in Outlook Addressbook

Below is an overview of the functionality that is currently not available when using Outlook 2013 in combination with ZCP.

  • Freebusy -> View calendar details
  • Activities in Shared stores and Public Stores
  • GAL pictures
  • Using file -> Open -> Open other user's store is not possible, however you can open delegate stores using Zarafa's advanced configuration dialog, and you can open calendars using the ribbon ('Open Calendar') when viewing your calendar.

Click To Run

The Zarafa Outlook compatibility component does not support Outlook 2013 Click-to-run!

Office 2013 OEM, Office 2013 Home & Business, Office 2013 Professional and Office 365

As a rule of thumb one can assume that Office 2013 OEM, Office 2013 Home & Business, Office 2013 Professional and Office 365 releases are based on Click To Run and therefore not supported, especially in the case they have been provided pre installed on a new computer.


In very rare cases it can be that the zcompat.dll is not properly added to the AppInit_DLLs property within the registry.

This could result in shared calendars not properly being displayed.

In the registry:

For Windows 64bit, navigate to:
HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Windows
Change AppInit_DLLs to include C:\PROGRA~2\Zarafa\ZARAFA~1\zcompat.dll

For Windows 32bit, navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows
Change AppInit_DLLs to include C:\PROGRA~1\Zarafa\ZARAFA~1\zcompat.dll

In both cases, if you have multiple AppInit_DLLs you can separate them by using a space between them.
E.g. "somedll.dll C:\PROGRA~1\Zarafa\ZARAFA~1\zcompat.dll".


In some cases it helped to move zcompat.dll into the SySWOW64 folder on 64bit systems.

64 bits support

We plan to support 64-bit in the future, however no fixed release schedule is set.

Here is some additional information on Outlook 2013 64-bit.

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