Option Explicit

Private Declare Function ShellExecute Lib "shell32.dll" Alias _
      "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation _
      As String, ByVal lpFile As String, ByVal lpParameters _
      As String, ByVal lpDirectory As String, ByVal nShowCmd _
      As Long) As Long

Private Const SW_SHOWNORMAL = 1

Private Sub cmd_Suchen_Click()
  On Error GoTo err_Handler

  Dim strStartPath As String

  strStartPath = Dir1.Path
  ShellExecute Me.hwnd, "find", strStartPath, "", "C:\", _
        SW_SHOWNORMAL
  Exit Sub

err_Handler:
  MsgBox "Es ist ein allgemeiner Fehler aufgetreten." & vbCrLf & _
          vbCrLf & "Fehlernummer: " & Err.Number & vbCrLf & _
          "Fehlerbeschreibung: " & Err.Description, vbOKOnly + _
          vbCritical, "Allgemeiner Fehler"
End Sub