I am facing a problem with application sharing on messenger. When I try to do that I am getting a error Error 0x80ee000c SIP Transaction timed out. I a not able to understand why it is not working. I was just using the same a couple of days ago. I am trying to share a whiteboard session here. Firewall is turned on in my system. I do not think firewall is a problem here. I am using the latest version of MSN Messenger. So that is also not a bug.