写了一个读取IP的程序，但是只能在XP系统管用，W7读不出来，是什么原因？哪个高手给指点下？

Private Sub Form_Load()

Dim IPxianzhijishu As Integer
Dim strComputer As String
Dim objWMI As Object
Dim colIP As Object
Dim IP As Object
Dim IIP As Integer
strComputer = "."
Set objWMI = GetObject("winmgmts://" & strComputer & "/root/cimv2")
Set colIP = objWMI.ExecQuery("Select * from Win32_NetworkAdapterConfiguration where IPEnabled=TRUE")
For Each IP In colIP
    If Not IsNull(IP.IPAddress) Then
        For IIP = LBound(IP.IPAddress) To UBound(IP.IPAddress)
            'MsgBox "IP 地址:" & IP.IPAddress(IIP) & Chr(10)  'MsgBox "IP 地址:" & IP.IPAddress(IIP) & Chr(10) & "网卡类型:" & IP.Description(IIP) & Chr(10) & "网卡地址:" & IP.Macaddress(IIP)
            If IP.IPAddress(IIP) = "192.168.253.6" Or IP.IPAddress(IIP) = "192.168.123.13" Then
            'MsgBox "keyi"
            IPxianzhijishu = 1 + IPxianzhijishu
            Else
            IPxianzhijishu = 0
            End If
        Next
    End If
  ' MsgBox "IP 地址:" & IP.IPAddress(IIP)
Next

If IPxianzhijishu = 0 Then
    MsgBox "IP不符"
    End
End If

是不是win7不支持wmi服务了？