Microsoft Forms popup when opening certain Outlook calendar items

Question

Popup titled "Microsoft Forms" reads: "To help prevent malicious code from running, one or more objects in this form were not loaded. For more information, contact your administrator."

The meeting itself is an invitation using Cisco MeetingPlace, other invitations open without the popup. I'm also running Symantec Endpoint Protection, which may contribute as well.

Is there any why I can never see this popup again? It's annoying and I don't really care that the forms were not loaded.

Solution

This is an issue with the Cisco MeetingPlace Outlook Plugin that is installed.

To work around this, disable the plugin: In Outlook 2007,

• go to Tools,
• Trust Center
• Add-ins
• under the Manage drop-down at the bottom of the dialog, select Exchange Client Extenisons
• Go...
• Uncheck MeetingPlace for Outlook

This will prevent the popup from being displayed, which was my main goal. However, the plugin will also be disabled however, which may interfere with other functionality.