Ldap Authentication: Reset password on first login

Hi There,

We use Active Directory (Server 2012) for user accounts and they are provisioned into Drupal when the user logs in.

When a user logs into a network machine for the first time they are prompted to change their password before they can continue.

If a remote user who has never logged in to the network before attempts to log into our Drupal site , the attempt is rejected with code 49 "Invalid credentials", further investigation revels the problem to be subcode 773 'USER MUST RESET PASSWORD' (taken from http://wiki.servicenow.com/index.php?title=LDAP_Error_Codes#gsc.tab=0)

My apologies if I am wrong but from what I can see this case doesn't appear to be handled at present? - just seems to be treated as a standard Invalid Credentials error.

Thanks for looking,

-Brett