Ok, I tried this, and it didn't help.....

Fortunately my company has an MSDN Universal contract so I will call
them today and see how that goes.

FWIW, I examined the difference between the 2 working requests (GET
version of the same .NET call) to see what, if any differences, there
were in the authentication.

The first time libcurl connects, it sends this header along with the
request (same to both machines obviously):

> Authorization: NTLM TlRMTVNTUAABAAAAAgIAAAAAAAAgAAAAAAAAACAAAAA=

Then, the machines do respond differently:

< Server: Microsoft-IIS/5.0
< WWW-Authenticate: NTLM
TlRMTVNTUAACAAAAAAAAADAAAAACAgAA0m1iYUfWTwsAAAAAAAAAAAAAAAAwAAAA

---
 > Server: Microsoft-IIS/6.0
 > WWW-Authenticate: NTLM  
TlRMTVNTUAACAAAAAAAAADgAAAACAgACW+BHzM0t6zkAAAAAAAAAAAAAAAA4AAAABQLODgAA 
AA8=
And of course the follow-up final part of the handshake is different:
< Server: Microsoft-IIS/5.0
< Authorization: NTLM  
TlRMTVNTUAADAAAAGAAYAE0AAAAYABgAZQAAAAAAAABAAAAADQANAEAAAAAAAAAATQAAAAAA 
AAB9AAAAAYIAAGFkbWluaXN0cmF0b3J887ch6gFCYUfVXeXzkt5GbJB4JNkzHYwtTHZflbNJ 
2CcARWgYWNYBuwo105/f61Q=
---
 > Server: Microsoft-IIS/6.0
 > Authorization: NTLM  
TlRMTVNTUAADAAAAGAAYAFIAAAAYABgAagAAAAoACgBAAAAACAAIAEoAAAAAAAAAUgAAAAAA 
AACCAAAAAYIAAGludGVyd292ZW5hcGluc3RlaaI8L7j8b3r+470cAkDJRDhGoltVTDWqui9m 
nfDhqoY0cAM7jvDo6gqw1hLHpNfk6w==
BUT the thing to remember is that it WORKS in both cases... it's only  
when I convert to SOAP (soap in POST) that I get an error. Plus, that  
error is *not* an NTLM authorization error, but rather
Bad Request (Invalid Verb).
============
At this point in time I think the libcurl horse is quite beaten and  
dead.... unless anyone has any other thoughts, I am gonna call MS.
Alan
On Mar 15, 2004, at 9:26 AM, Daniel Stenberg wrote:
> On Mon, 15 Mar 2004, Alan Pinstein wrote:
>
>> Plus, I can use --ntlm to do a simple GET request... it's only the  
>> "SOAP" /
>> POST version that doesn't work.
>
> ... the fact that curl works against IIS 5 doesn't have to mean curl  
> does it
> right, it could mean that the version 6 is more picky about something  
> curl is
> sloppy with.
>
> Not that I can figure out what detail that would be, since you have  
> the "issue
> 12" fix in the 7.11.1-pre1 already...
>
>>> "#define USE_NTRESPONSES 1" and rebuild.
>
>> Is this off of 7.11.1-pre1?
>
> Code code is the same in 7.11.0 and 7.11.1-pre1, we haven't changed it  
> since.
>
> -- 
>     Daniel Stenberg -- http://curl.haxx.se/ -- http://daniel.haxx.se/
>    [[ Do not send mails to this email address. They won't reach me. ]]