我在VB6中使用此代码来获取计算机的MAC Address：

Sub GetMACAddress()

    'get MAC address using WMI
    Dim oWMIService As Object
    Dim oColAdapters As Object
    Dim oObjAdapter As Object

    Set oWMIService = GetObject("winmgmts:" & "!\\.\root\cimv2")
    Set oColAdapters = oWMIService.ExecQuery _
    ("Select * from Win32_NetworkAdapterConfiguration Where IPEnabled = True")

    For Each oObjAdapter In oColAdapters
       MsgBox "MAC address formatted: " & oObjAdapter.MacAddress & vbNewLine _
       & "MAC address unformatted: " & Replace(oObjAdapter.MacAddress,":","")
    Next

    Set oObjAdapter = Nothing
    Set oColAdapters = Nothing
    Set oWMIService = Nothing
    End Sub

问题是我安装了在Oracle VirtualBox上运行的Windows 7，并且oColAdapters有两个MAC地址。

如何检查我的PC是哪一台？