response-header: x-powered-by => ASP.NET
response-header: content-type => text/html
response-header: www-authenticate => Negotiate, NTLM
response-header: date => Mon, 02 Aug 2010 19:48:17 GMT
response-header: server => Microsoft-IIS/6.0
response-header: content-length => 1539
status: 401

require 'rubygems'
require 'mechanize'
require 'logger'

agent = WWW::Mechanize.new { |a| a.log = Logger.new("mech.log") }

agent.user_agent_alias = 'Windows IE 7'

agent.basic_auth("username","password")

page = agent.get("http://server/loginPage.asp")

m = Mechanize.new
m.agent.username = 'user'
m.agent.password = 'password'
m.agent.domain = 'addomain'

agent.add_auth('http://server', 'username', 'password', nil, 'domain.name')