Hi Everyone
I need some help getting an attachment out of a SOAP request in VB6.

My code is :
Function UseSOAPClient(ByVal Method As String, _
                            Optional DocKey As String) As String

    Dim SoapClient As SoapClient30
    Dim Serializer As SoapSerializer30
    Dim Reader As SoapReader30
    Dim Parser As DimeParser30
    Dim ResultElm As IXMLDOMElement
    Dim FaultElm As IXMLDOMElement
    Dim Connector As SoapConnector30
    Dim strOutputXML As String

    Const SoapAction = "getFileNamed"
    Const END_POINT_URL = "http://axjcudft99:9081/DocRetrieval/services/GetDocService"
    Const LIST_NAMESPACE = "http://presentment.docucorp.ib.metlife.com"
    Const ENC = "http://schemas.xmlsoap.org/soap/encoding/"
    Const env = "http://schemas.xmlsoap.org/soap/envelope/"
    Const XSI = "http://www.w3.org/2001/XMLSchema-instance"
    Const XSD = "http://www.w3.org/2001/XMLSchema"

    Set Connector = New HttpConnector30
    Connector.Property("EndPointURL") = END_POINT_URL
    Connector.Connect

    ' binding/operation/soapoperation
    Connector.Property("SoapAction") = SoapAction
    Connector.BeginMessage

    Set Serializer = New SoapSerializer30
    With Serializer
        .Init Connector.InputStream

        .StartEnvelope , env
        .SoapNamespace "xsi", XSI
        .SoapNamespace "xsd", XSD
        .SoapNamespace "SOAP-ENC", ENC
        .StartBody
        .startElement SoapAction, LIST_NAMESPACE

            'begin writing XML for the request
            .startElement "getDocKey"
            .WriteString DocKey
            .endElement

        .endElement 'soapaction
        .EndBody
        .EndEnvelope

    End With

    Connector.EndMessage

    Set Reader = New SoapReader30
    Reader.LoadWithParser Connector.OutputStream, Parser 'the error is here.
    If Not Reader.Fault Is Nothing Then
        MsgBox Reader.FaultString.Text & vbCrLf & Reader.Fault.Text, vbExclamation
    Else
        Set ResultElm = Reader.Dom
    End If

    'Debug.Print Reader.RpcResult

End Function

The problem I'm having is on the line described. The error returned is "Invalid Procedure Call or Argument". Could someone shed some light on why this is?