I'm using XMLHTTP to talk with a web service. I need to send multiple headers. The Authentication is working, but my Response is returning an error:

no SOAPAction header!

Do I need to do something differently in how I'm sending the headers? This is the block of code that is relevant:

* Set Headers
lxmlObj.SetRequestHeader("authorization", cAuthenticate)
lxmlObj.SetRequestHeader("SOAPAction", "")

* Send
lxmlObj.Send()

* Response
lcResponse = lxmlObj.ResponseText