Well basically this is what happened. I made a group and invited my friend into it. It should of been sent to his email. But he emailed me that he never got an invitation email which was automatically was sent by Microsoft. And I also want to send him Offline IM's but he was online on his computer at that time so was I but it didn't show on my computer that he was online and it didn't show on his computer that I was online. I have a Windows 7 Ultimate computer and my other friend has a Windows Vista computer!