Follow these steps to uninstall Weather Watcher Live:

Step 1:
Make sure Weather Watcher Live is not running. Select "Exit" from the Weather Watcher Live system tray icon menu to shut down Weather Watcher Live.

If Weather Watcher Live is running, but you cannot see the Weather Watcher Live system tray icon, then end the "WW.EXE" process in the Windows Task Manager. Also, close down any instances of "DL.EXE". You can access the Windows Task Manager by pressing ALT+CTRL+DEL.

Step 2:
Once Weather Watcher Live has been closed, run the uninstall program from the "Add/Remove" section of the Windows Control Panel, or from the "Weather Watcher Live" folder in your Windows Start menu.

Step 3:
When you run Weather Watcher Live, it creates some files that contain your user settings. Since the uninstaller does not know those files exists, it will not remove them. You can manually remove them by deleting them from the following locations:

http://www.singerscreations.com/Forum/viewtopic.php?f=66&t=2204

Hello, yes, as I said, I am using a Mac so I can't use these instructions....

Then you'll want to follow the instructions I posted for you here:
http://www.singerscreations.com/Forum/viewtopic.php?f=72&t=3775