How can I pretty-print XML source using VB6 and MSXML?

After months of research I’ve come up with this.

Public Function PrettyPrintXML(XML As String) As String

  Dim Reader As New SAXXMLReader60
  Dim Writer As New MXXMLWriter60

  Writer.indent = True
  Writer.standalone = False
  Writer.omitXMLDeclaration = False
  Writer.encoding = "utf-8"

  Set Reader.contentHandler = Writer
  Set Reader.dtdHandler = Writer
  Set Reader.errorHandler = Writer

  Call Reader.putProperty("http://xml.org/sax/properties/declaration-handler", _
          Writer)
  Call Reader.putProperty("http://xml.org/sax/properties/lexical-handler", _
          Writer)

  Call Reader.parse(XML)

  PrettyPrintXML = Writer.output

End Function

Using a document:

Public Function PrettyPrintDocument(Doc As DOMDocument60) As String
  PrettyPrintDocument = PrettyPrintXML(Doc.XML)
End Function

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