Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal _    lpClassName As String, ByVal lpWindowName As String) 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 Const WM_COMMAND = &H111 Const MIN_ALL = 419 Const MIN_ALL_UNDO = 416 ' Minimize all the windows on the desktop (and optionally restore them)' This has the same effect as pressing the Windows+M key combinationSub MinimizeAllWindows(Optional Restore As Boolean)    Dim hWnd As Long    ' get the handle of the taskbar    hWnd = FindWindow("Shell_TrayWnd", vbNullString)     ' Minimize or restore all windows    If Restore Then        SendMessage hWnd, WM_COMMAND, MIN_ALL_UNDO, ByVal 0&    Else        SendMessage hWnd, WM_COMMAND, MIN_ALL, ByVal 0&    End IfEnd Sub