W (Task Scheduler)
An item that can be scheduled using the Task Scheduler service. It can be any item that the Task Scheduler service runs at a time that is specified by the item's trigger(s).
Currently, tasks are the only valid type of work item.
The directory where Task Scheduler will start to run the task. If no working directory is specified, Task Scheduler will run the task in the %windir%\system32 directory.