$browser->credentials (
   'foo.com:80',
   '',
   'DOMAIN\username' => 'passwd' (with our without DOMAIN)
);

##</code><code>##

$req->authorization_basic('userid', 'passwd');

##</code><code>##

LWP::UserAgent::_need_proxy: Not proxied

##</code><code>##

LWP::UserAgent::request: Simple response: Unauthorized
GET http://foo.bar.com/default.aspx
User-Agent: libwww-perl/5.806

##</code><code>##

HTTP/1.1 401 Unauthorized
Date: Thu, 03 Jan 2008 01:31:57 GMT
Server: Microsoft-IIS/6.0
WWW-Authenticate: NTLM
Content-Length: 1656
Content-Type: text/html
Content-Type: text/html; charset=Windows-1252
Client-Date: Thu, 03 Jan 2008 01:31:58 GMT
Client-Peer: (IP snipped):80
Client-Response-Num: 1
Client-Warning: Unsupported authentication scheme 'ntlm'
MicrosoftSharePointTeamServices: 6.0.2.8103
Title: You are not authorized to view this page
X-Powered-By: ASP.NET

##</code><code>##

You do not have permission to view this directory or page using the credentials that you supplied because your Web browser is sending a WWW-Authenticate header field that the Web server is not configured to accept.

##</code><code>##

HTTP Error 401.2 - Unauthorized: Access is denied due to server configuration. Internet Information Services (IIS)