strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colNetAdapters = objWMIService.ExecQuery _
    ("Select * from Win32_NetworkAdapterConfiguration where IPEnabled=TRUE")
For Each objNetAdapter In colNetAdapters
    errEnable = objNetAdapter.EnableDHCP()
     If errEnable = 0 Then
        Wscript.Echo "DHCP has been enabled."
    Else
        Wscript.Echo "DHCP could not be enabled."
    End If
Next