Article ID: 2482424 - View products that this article applies to.
Consider the following scenario:
This issue occurs because the Live Meeting Conferencing Add-in for Outlook converts the XML response incorrectly that is received from the Live Meeting conference center.
To fix this issue, install the following cumulative update:
(http://support.microsoft.com/kb/2505930/ )Description of the update for the Live Meeting Conferencing Add-in for Outlook: February, 2011
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.