You create a meeting invitation by using Microsoft Live Meeting 2007 Conferencing Add-in for Outlook. The meeting invitation is in German. In this situation, the German text in the meeting invitation does not match the German text in the conferencing attended announcement.
To fix this problem, install the following cumulative update:
2433228 Description of the update for the Live Meeting Conferencing Add-in for Outlook: November 2010
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.