Microsoft Outlook Calendar: Objects Not Loaded

When adding an item to an iCloud calendar in Outlook, you receive: “To help prevent malicious code from running, one or more objects in this form were not loaded”.

This may occur if ActiveX controls have been disabled in Microsoft Office (as opposed to Internet Explorer).

To enable, open a command prompt and enter:

reg add HKCU\Software\Microsoft\Office\Common\Security /v DisableAllActiveX /d 0 /t REG_DWORD /f