XML / Schema validation - need error node

Hi -

    I'm running validation for an XML file against an xsd schema using MSXML4. I do this using the following code:

Dim objReader As New MSXML2.SAXXMLReader40  '-  Create a SAX reader.
Dim objValidator As clsXMLEventHandler      '-  Create an instance of the class module that implements the IVBSAXErrorHandler interface

Const VALIDATE_FEATURE As String = "schema-validation"
Const EXHAUSTIVE_FEATURE As String = "exhaustive-errors"
Const VALIDATE_TYPE_PROPERTY As String = "schemas"
 
    'Assume failure
    ValidateXML = False
   
    'Instantiate the event handler
    Set objValidator = New clsXMLEventHandler
   
    'Setup the validator
    objValidator.XML = pobjDOMDoc.XML

    'Configure the SAX reader to validate the XML document.
    With objReader
        .putFeature VALIDATE_FEATURE, True
        .putFeature EXHAUSTIVE_FEATURE, True
        .putProperty VALIDATE_TYPE_PROPERTY, mobjSchemaCache
        'Assign an instance of the MyValidator class to the errorHandler property of the SAX reader.
        Set .ErrorHandler = objValidator
        'Parse and validate the xml.
        .parse pobjDOMDoc.XML
    End With

This uses an event handler class which implements IVBSAXErrorHandler. This catches validation errors in subroutines like this one:

IVBSAXErrorHandler_error(ByVal oLocator As MSXML2.IVBSAXLocator, strErrorMessage As String, ByVal nErrorCode As Long)

This is great and gives me some useful info. However, what I could really do with is the Node object for which the error was thrown.

Does anyone know how I would go about getting hold of the node object? I've got the line number and column, and a copy of the .XML text - how would I go about finding the required node??

Answers on a postcard....

Thanks, Nik