Using WinINet with HTTPS

I'm trying to authenticate with the passport server for an MSN Messenger client (The connection has to be SSL), but the request is never goes through . Does anybody see what I'm doing wrong here?

Code:

int AuthenticatePassport(const char *pszUsername, const char *pszPassword)
{
	int		nResult=0;
	HINTERNET	hInternet, hHttpSession, hHttpRequest;
	
	// set up connection
	if ( (hInternet=InternetOpen("MSN", INTERNET_OPEN_TYPE_PRECONFIG, 0, 0, 0)) )
	{
		// set up session
		if ( (hHttpSession=InternetConnect(hInternet, "https://nexus.passport.com", 
INTERNET_DEFAULT_HTTPS_PORT, 0, 0, INTERNET_SERVICE_HTTP, 0, 0)) )
		{
			// open site
			if ( (hHttpRequest=HttpOpenRequest(hHttpSession, "GET", "/rdr/pprdr.asp", 0, 0, 0, 
INTERNET_FLAG_SECURE, 0)) )
			{
				// send request for login server
				if ( HttpSendRequest(hHttpRequest, 0, 0, 0, 0) )
				{
					// TODO: Connect to login server
					nResult=1;
				}
			}
			InternetCloseHandle(hHttpRequest);
		}
		InternetCloseHandle(hHttpSession);
	}
	InternetCloseHandle(hInternet);
	return nResult;
}

For information about the MSN Protocol, I was getting my information here.

Thanks in advance,
Joe

For anybody that is interested, the Request wouldn't be sent because I had "https://" at the beginning of the URL.

-Joe