When you try to sign in to Windows Live Messenger, you receive the following error message:
810003c1: We were unable to sign you in to the .NET Messenger Service.
Microsoft has shut off the Windows Live Messenger IM for users in the countries embargoed by the US hence Microsoft no longer offers Windows Live Service in your country.
- Cuba
- Syria
- Iran
- Sudan
- North Korea
Source: Messenger Support Blog
