Thanks for trying to help, Courage. I've been using WMI with perl for a long time and the basic stuff all works very nicely. I think my crux of the problem is that this is the first time that I have tried to return an object from an OLE call where the object reference is supplied as an argument rather than as a result of the call. ie. This always works:

$objectIwant = $otherobject->Method();
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but this does not:

$returncode = $otherobject->Method($objectIwant);
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