'从哪里找来的资料已经忘了，老外发布的

Option Explicit
Private Declare Function GetOpenFileName Lib "comdlg32.dll" Alias "GetOpenFileNameA" (pOpenfilename As OPENFILENAME) As Long

Private Type OPENFILENAME
lStructSize As Long
hwndOwner As Long
hInstance As Long
lpstrFilter As String
lpstrCustomFilter As String
nMaxCustFilter As Long
nFilterIndex As Long
lpstrFile As String
nMaxFile As Long
lpstrFileTitle As String
nMaxFileTitle As Long
lpstrInitialDir As String
lpstrTitle As String
flags As Long
nFileOffset As Integer
nFileExtension As Integer
lpstrDefExt As String
lCustData As Long
lpfnHook As Long
lpTemplateName As String
End Type

Private Sub Command1_Click()

Dim OpenFile As OPENFILENAME Dim lReturn As Long Dim sFilter As String OpenFile.lStructSize = Len(OpenFile) OpenFile.hwndOwner = Form1.hWnd OpenFile.hInstance = App.hInstance sFilter = "Batch Files (*.bat)" & Chr(0) & "*.BAT" & Chr(0) OpenFile.lpstrFilter = sFilter OpenFile.nFilterIndex = 1 OpenFile.lpstrFile = String(257,0) OpenFile.nMaxFile = Len(OpenFile.lpstrFile) - 1 OpenFile.lpstrFileTitle = OpenFile.lpstrFile OpenFile.nMaxFileTitle = OpenFile.nMaxFile OpenFile.lpstrInitialDir = "C:\" OpenFile.lpstrTitle = "Use the Comdlg API not the OCX" OpenFile.flags = 0 lReturn = GetOpenFileName(OpenFile) If lReturn = 0 Then MsgBox "The User pressed the Cancel Button" Else MsgBox "The user Chose " & Trim(OpenFile.lpstrFile) End If End Sub