Background action

[mk92]

Hello,

i try to do this:

ThisApplication.Documents.Open("XYZ.ipt")

but the file should open in the background. Not as the active document.

Then i want to save this Document in the background as a step (using the snippet)

' Set reference to active document.
oDoc = ThisApplication.ActiveDocument

' Check the Document type is an assembly or part
If (oDoc.DocumentType <> kAssemblyDocumentObject And _
   oDoc.DocumentType <> kPartDocumentObject) Then
   MsgBox("Error:Document type is not assembly/part")
   Exit Sub
End If

' Get document's full file name
sFname = ThisDoc.PathAndFileName(False) & ".sat"

' Do a 'Save Copy As' to SAT format
oDoc.SaveAs(sFname, True)

But in my case oDoc isn't the active document. How can i use the "inactive" document in the background?

I looked in the help files but found nothing about this case!