1.5 Prerequisites/Preconditions
NTLM over HTTP Protocol authentication assumes the following in addition to any assumptions specified in [MS-NLMP].
The web server is operating in an environment with a database of user identities, and the NT LAN Manager (NTLM) Authentication Protocol, as specified in [MS-NLMP], is available to authenticate those users.
The web client has implemented the NT LAN Manager (NTLM) Authentication Protocol, as specified in [MS-NLMP], so that it can participate in user authentication to the web server.