Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Public Const WM_CLOSE = &H10
sub CloseWin()
dim hwnd as long
hwnd=findwindow(vbnullstring,"你想关闭的程序名") '就是窗口标题
sendmessage hwnd,WM_CLOSE,0,0&
end sub