I think I can point you to the necessary parts, however I have not seen a precoded solution. See
this page for a description of how the NTLM auth works. If Microsoft has such a description, I've not found it. You'll have to
pack up the structures yourself. You shouldn't have to code the NTLM response, though, as
Authen::NTLM will probably be fine for that.
You may be able to negotiate a different auth type (e.g. digest or simple), though so that may be another approach
HTH, --traveler