Question : Unable to send e-mail invitations in Microsoft Office Live Meeting

Im getting this error when we try to invite an attendee to Live Meeting... any ideas what I could try? Im using Office Communicator 2007 Standard also...

Microsoft Office Live Meeting

Error
Unable to send e-mail invitations. If you have Microsoft Outlook 2002 or later, make sure it is your primary e-mail program and then try again.
If you are using another e-mail program, create and send an e-mail invitation that includes the meeting information from the Meeting pane.

Just wanted to add... Im using Office 2007, so Outlook 2007 is our primary e-mail program being used companywide.

Answer : Unable to send e-mail invitations in Microsoft Office Live Meeting

Try this kb first  http://support.microsoft.com/kb/947381  Additionally check HKLM AND HKCU\Software\Clients\Mail (Default) to make sure they are set to Microsoft Outlook.
Cheers-