Added experimental feature MouseWheelFocus option under config.settings, if set to 1, S+ will send WM_SETFOCUS to the control under the mouse cursor before mouse wheel scrolling. Basically, makes it so the area under the mouse will scroll, instead of having to click the control/pane/tree/list before the mouse wheel will scroll that area. This is a "use at your own risk" option as it may not play nice with some programs. This feature doesn't appear to work well under Windows XP, inside of a VM anway, I don't have a stand-alone XP box to confirm.