Whenever I am trying to send an Email from the Windows Live Hotmail it always shows me an error saying that "Attachment Id has bad format". It happens with all Email which I am trying to send. Due to this there is no way an email sent from this. I donít know what this error message indicates. Do you think that there is any kind of signature file setup or something while removing it could solve the problem? Should I try to remove Auto signature to resolve this error.