VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   495
      Left            =   1800
      TabIndex        =   0
      Top             =   1320
      Width           =   1215
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False



Public Function EthernetAddress() As String   '使用WMI取網卡號,win2000和XP下用
   On Error GoTo ErrorHandle
   Dim objs, obj
   Set objs = GetObject("winmgmts:").ExecQuery("SELECT MACAddress " & _
      "FROM Win32_NetworkAdapter WHERE " & _
      "((MACAddress Is Not NULL) AND (Manufacturer <> 'Microsoft'))")
   For Each obj In objs   '有多個網卡，只取一個
      EthernetAddress = obj.MACAddress
      Exit For
   Next
   '取回來的格式為 00:00:00:00:00,去掉中間的:
   EthernetAddress = Replace(EthernetAddress, ":", "-")
   Exit Function
ErrorHandle:
'    MsgBox "取網卡號錯誤，系統不能正常使用，請檢查您的電腦硬件設備！" & Chr(13) & "請查看“服務”中WMI服務項是否有打開！", vbCritical, "幫助信息"
End Function

Private Sub Command1_Click()
    MsgBox EthernetAddress
    
End Sub