>>We are unable to thisForm.AddObject("oXyz", "empty"). Does anyone know of any pitfalls for this workaround?
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thisForm.AddProperty("oXyz", CREATEOBJECT("empty"))

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>Why would you expect the first item to work? The signature is:
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>Object.AddProperty(cPropertyName [, eNewValue [, nVisibility [, cDescription]]])
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The first item is AddObject():

Object.AddObject(cName, cClass [, cOLEClass] [, aInit1, aInit2 ...])