Thanks for the input but none of this helped. I also don't want to log in to any messenger or whatever. I am strictly using the program for E-Mail. POP3 and SMTP not an Live ID. I just want my old Outlook program back.
The other thing you could do is to select a System Restore Point prior to having trouble with WLMail, if that's not too far in the past, and see if that might correct the error code.
The reason you are required to sign into your WLMail account is that it is a web based program, not client based where that information is stored on your computer and transferred from client to email provider at time of authentication. It is completely separate from Windows Live Messaging which you don't have to use.
You mentioined Outlook, which is a great mail client program and available separately or as part of the business Office programs, in Office 2010. It can handle POP-3 and web based accounts.
Outlook Express was a great little efficient e-mail client but has been replaced by Windows Live Mail, and is no longer supported or upgraded.