I'm trying to use VB6 to do POST requests to Exchange Web Services 2007. I don't have the fancy tools from .NET so I would like to do this as a simple HTTPS POST and manually create the SOAP/XML to keep this as simple as possible. I think I understand how to build the EWS request but I'm not sure how to authenticate with the Exchange username/password using raw XML and a simple HTTPS POST? If I navigate directly to the POST URL below in IE, it prompts me with a popup for my user/pwd and after I enter that I get back the WSDL Definitions, so I'm pretty sure the URL and credentials are correct. I just can't figure out how to post those credentials via normal HTTPS POST? When I try I get 401:Unauthorized.
Thanks and here is what I'm posting and to where:
POST URL: https://company.com/ews/exchange.asmx
<?xml version="1.0" encoding="utf-8"?>