In XP if i use
SetWindowLong(Handle, GWL_EXSTYLE,GetWindowLong(Handle, GWL_EXSTYLE) xor WS_EX_APPWINDOW);
then window with Handle show or hide from Alt+Tab list.
ROS ignores the presence of the ws_ex_appwindow style and always show this window.
- is blocked by
CORE-16086 Alt+Tab dialog has incorrect program icons running from the "Control Panel" folder