Ok I tried this method by loading 3 APIs in this way:
Dim doc As New XmlDocument()
dim doc1 = ("AP1")
dim doc2 = ("AP2")
dim doc3 = ("AP3")
doc.Load(doc1)
doc.Load(doc2)
doc.Load(doc3)
But this always load the last one API3 and ignores the first 2. Is there a way to get to load all three instead of only the third one?