I have a delphi program that uses TIdHttp to exchange data with a server. The HTTP component needs to authenticate itself to a proxy server. It is required to use the NTLM authentication scheme.    I have been playing with TIdSSPINTLMAuthentication and TIdNTLMAuthentication for a while, just can't get the hang of it. I also searched on the net for just anything about these two components. The only thing that was close enough was             http://blogs.slcdug.org/mabster/archive/2004/08/25/480.aspx. Unfortunately, it didn't work for me. Could anyone share a working sample of NTLM Authentification, preferably in Indy10? Thanks.