I’m using Outlook 2007 and up until recently, I had no issues using that with iCloud. Now I receive the following error;
The set of folders cannot be opened. An unexpected error has occurred. MAPI was unable to load the information service C:\PROGRA~2\COMMON~1\Apple\INTERN~1\APLZOD.dll. Be sure the service is correctly installed and configured.
I’ve verified that I’m using the latest version of iCloud and I tried signing out of iCloud and then signing back in, but it still doesn’t work with Outlook.
How do I get iCloud to work with Outlook 2007 again or has support been dropped for it?
Apple has not (yet) dropped iCloud support for Outlook 2007 but an additional security check that was added by a recent security update for Outlook 2007 will indeed result in a broken iCloud integration.
You can still re-enable iCloud integration with Outlook 2007 by disabling this security check via the Registry.
Note: Outlook 2010 and later are not affected by this as they include more modern security checks to trust specific add-ins.
AllowUnregisteredMapiServices Registry value
To be able to use iCloud with Outlook 2007 again, you’ll need to set the
AllowUnregisteredMapiServices Registry value to 1.
By doing this, you will disable a security check of Outlook regarding the contents of the MAPISVC.inf file. This security check was introduced with the June 2017 update for Outlook 2007 (KB3191898).
iCloud (and several other add-ins) are using values in the MAPISVC.inf file which are not officially supported in Outlook 2007. This could pose a security risk when used as Outlook 2007 doesn’t have any mechanisms in place to verify whether they are malicious references or not (later versions of Outlook do).
As this path might not exist in your Registry yet, you’ll need to create it first. If you are not really into editing the Registry yourself, you can also download this zip file. It contains a reg-file which you can double click to add it to the Registry.
Support for Outlook 2007 is about to end!
While setting the above Registry value will allow you to use iCloud with Outlook 2007 again, it really is recommended to upgrade to a newer version of Outlook and not just because of the aforementioned security risk.
Microsoft is ending support for Outlook 2007 on October 10, 2017. After this date, Microsoft will no longer provide any new security updates for Outlook 2007. This can put your computer at risk, even with an up-to-date virus scanner or malware suite installed on your computer.
It is expected that Apple will drop iCloud support for Outlook 2007 around that date as well.