On Error Resume Next

strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")

Set colNetCards = objWMIService.ExecQuery _
("Select * From Win32_NetworkAdapterConfiguration Where IPEnabled = True")

For Each objNetCard in colNetCards
arrDNSServers = Array("192.168.1.100", "192.168.1.200")
objNetCard.SetDNSServerSearchOrder(arrDNSServers)
Next