🚀 go-pugleaf

I am using the IXMLDoucment interface to parse an XML document.   The
problem is it appears to be quite a memory hog; using up to 500MB to
parse a large document.   If I watch the Windows Task manager, I can
see memory being consumed as the document is loaded.   This memory is
only released again when my Delphi app terminates.   I have read up on
how it is an interface object and if it has no parent and is assigned
to nil it will be automatically freed once no further references to it
exist, or that it will be freed if it is created on a form when the
form is destroyed.   I have tried manually creating it and assigning
it to nil, and I have tried creating a form with an XML Document
component on it and releasing the form but the memory still isn't
freed at this time.   (In both cases I am using local variables in a
method for the XML Document and the form.)

Are there any suggestions as to how I can free the memory as soon as I
have finished using the interface?