I am experimenting lately with Virtual Listviews and i am wondering if there is a possibility to make repeated mass updates of many LV items (Item Color, value, icon) more CPU friendly and faster. Would subclassing be an option or using a custom external Dll? This is what i got so far: ;~ #include <_GUICtrlListView.au3> #include <WindowsConstants.au3> #include <GuiListView.au3> #Include <GuiImageList.au3> #include <GUIConstants.au3> Global $switch = 0 Gl