non c'est pas possible Domino n'est pas compatible NTLMextrait :Single Sign-on is not supported for this release of Domino. NTLM is a Microsoft-specific protocol supported by Internet Explorer, in which the user's current NT logon account name is used to authenticate to the server. In both cases, IIS will authenticate the NT account name against the NT registry on the IIS Server first and because the user is already authenticated, a cookie is not generated nor honored. sorry
