Currently singleInstance/title option is not enough to activate program window if there are several windows with such title e.g. Explorer window with program folder opened. In such case last recently used window is brought to front which may not be program window.
Allowing to use window class additionally to window title option would resolve this problem in most cases.
e.g. add...
2009-08-03 11:12:43 UTC in Launch4j Executable Wrapper
