SoupConnectionNTLM — NTLM-authenticated connection
SoupConnectionNTLM;
GObject +----SoupConnection +----SoupConnectionNTLM
SoupSession automatically creates SoupConnectionNTLM rather than SoupConnection if you set the SOUP_SESSION_USE_NTLM flag.
SOUP_SESSION_USE_NTLM
typedef struct _SoupConnectionNTLM SoupConnectionNTLM;