There was a problem:
You had set a task to be executed in 6:30 am, Shut Down PC for example on everyday. When you run Shareaza at 7 pm next day surprisingly PC counts down for Shutdown. This is because its passed 6:30 and download is for every day so shutdown task has to be executed.
The solution is to set a validity period for each task. For example when I set validity period for shut down task, say 5 minutes, shut down task is only valid until 6:35. After that it won't be executed for that day.
Versioning for XML export is also added.
Patch is update. Please commit ASAP.