iis6+javascript Add an Extension File

strComputer = "." 
Set objWMIService = GetObject _ 
    ("winmgmts:{authenticationLevel=pktPrivacy}\\" _ 
        & strComputer & "\root\microsoftiisv2") 

Set colItems = objWMIService.ExecQuery _ 
    ("Select * From IIsWebService") 

For Each objItem in colItems 
    objItem.AddExtensionFile _ 
        "C:\WINDOWS\system32\bits_update.dll", False, _ 
            "BITSEXT", True, "BITS Update" 
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