>>>>> Daniel Stenberg <daniel_at_haxx.se>:

> On Thu, 23 Feb 2006, Michele Bini wrote:

>> IIS replies with a 500 error (internal server error)

> Wow. That does sound like some kind of server problem you exploit by
> doing this with curl.

When I've seen this error it's usually haven't had anything directly
with NTLM or SPNEGO authentication. In fact getting there, to get a
code of 500, rather than a 401, has indicated that my client and IIS
had finished their authentication, and the problem occured between IIS
and our own ISAPI extension.

Do you use any ISAPI extensions on the IIS in question?
Received on 2006-02-25