windows process

Hello...
i have a problem...
if i am running a process in windows like copy data or download, and i want this application are stop until the process windows finished. if windows process finished(like copy data or download), so this application will execute. so i have to read process in task manager. can you help me to read the process in task manager??? how i get the source?

Processes in task manager depends upon system configuration. we can never know that is this process necessary or not! however you can kill or set priority to any process from task manager.