I assume the shared calendar registry setting just means that the SharingAddin is registered. In Outlook 2007, what happens if you do:
Tools->Trust Center->Addins Then go to the bottom where is says Manage:
COM Addins should be selected. Hit Go...
Does the Zimbra Sharing Addin show up checked?
What about when you select Exchange Client Extension. Does Zimbra Client Extension show up checked? |