As part of WiiConnect24, channels have the ability to register "tasks" permitting occasional download of any sort of file. For example, the Forecast Channel uses download tasks to update its information when idle. Historically the Wii Shop Channel changed its banner via download tasks.
var dlTask =newwiiDlTask();
Adds a task to be downloaded. url should point directly to a file within the WC24 Content format. interval is an integer given in minutes specifying when to repeat the task.
Requests that one task is deleted. It is unclear how multiple tasks would be handled, if that is even possible.
Verifies the amount of registered tasks is equal to 0.