It was so frustrating setting a “pure” 64 bit OS and installing 64 bit Office 2010 Beta, just to learn that MOC integration and Live Meeting add-in was not working properly. Luckily the fix has been released.

Microsoft Office Communicator 2007 R2 Hotfix KB 976135: This hotfix download for Microsoft Office Communicator 2007 R2 is described in the Knowledge Base article 976135.

And for the Live Meeting Add-in for Outlook 2010: get it here.

enjoy.