No, you dont need to uninstall.
If you have dcupdater
installed, you can check for updates from inside the programme via
menu: Help > Check for updates
DcUpdater is a general purpose update checker that can check for updates for multiple programs and help the user download and install them. For programmers, it's an easy and free way to to add update checking support to your programs.
(works with all of mouser's software)