>What is obj? Was it created with CREATEOBJECT() command before? My point is that array in VB defines an array, so the property should be an array property.

it is Adobe InDesing CS3

myInDesign = CreateObject("InDesign.Application.CS3")
myDocument = myInDesign.Documents.Add
myTextFrame = myDocument.Pages.Item(1).TextFrames.Add
myTextFrame.GeometricBounds = Array("6p", "6p", "24p", "24p")
myTextFrame.Contents = "Hello World!"