To do this you would need to start a new instance of qlikview - maybe in this way:
rem ** Example 1 ** from APIGuide.qvw
set app= ActiveDocument.GetApplication
app.Launch "C:\Program Files\Qv.exe","C:\Myfiles\abc.qvw"
and your code might be executed by an OnOpen-trigger or you execute external batches - triggerred per vbs or a load-statement: