The method identifies the Target parameter, the authentication scheme, and the user credentials to use for user authentication ...

The method identifies the Target parameter, the authentication scheme, and the user credentials to use for user authentication requests. The Target parameter can be set to the following values: 0: Server1: ProxyThe Scheme parameter can be set to one of the following values: 0: Basic is a scheme in which the username and password are sent in clear text to the server or proxy.1: Digest is a challenge-response scheme that uses a server-specified data string for the challenge.2: NTLM is a challenge-response scheme that uses the credentials of the user for authentication in a Windows-based network environment3: Negotiate is a challenge-response scheme that negotiates with the server or proxy to determine the scheme to use for authentication. For example, this value allows negotiation to determine whether the Kerberos protocol or NTLM is used. 4: Passport is a centralized authentication service provided by Microsoft that offers a single logon for member sites.