>There's a Window's event that fires when a new file is created. I'm not sure if it fires on first creation or when it's closed. Binding to that event is better than watching a folder for a new file.

This is from a robot application that is executing a process on the file. So, there is an incoming and once completed, the robot needs to process it. The robot runs every minute. But, I need to make sure it doesn't grab a file if the transfer is still in progress. For now, I have put a verification to make sure the timestamp of the file is at least 20 seconds from Date.Now. I am not sure I can have a bind from the robot to an event in such infrastucture.