A semi-colon -separated string defining the 'jump' list task. Should contain the 'name=' value to specify the task's name, the 'action-uri=' value to set the URL to load when the jump list is clicked, the 'icon-uri=' value to set the URL to an icon file to be displayed, and 'window-type=' set to either 'tab' (default), 'self' or 'window' to control how the link opens in the browser.