I've made some search but found nothing. I've a list (GUICtrlCreateList) with some (around 400) items in it. User can multi select item from this list. Clicking on a specific picture remove all selected item from the list. - getting all selected item : no problem - removing 1 selection item : no problem - removing multi selection items : bug Removing item change the others items id. So, i tried using _GUICtrlListBox_BeginUpdate and _GUICtrlListBox_EndUpdate, but it's the same bug. Is