Explicit
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function SetForegroundWindow Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Const WM_SYSCOMMAND = &H112
Private Const SC_RESTORE = &HF120&

Private Sub Form_Load()
        Dim lHwnd As Long
        lHwnd = FindWindow(vbNullString, "你要激活的任务栏的程序名称")
        Debug.Print lHwnd
        Call ActivateWin(lHwnd)
End Sub
Private Sub ActivateWin(ByVal lHwnd As Long)
        Call SetForegroundWindow(lHwnd)
        Call SendMessage(lHwnd, WM_SYSCOMMAND, SC_RESTORE, 0)
End Sub