How do I check if there is no process left in my commando line when I use aerender. Basic code looks like this: aerender -project c:\projects\project_1.aep -comp "Composition_1" -output c :\output\project_1\project_1.avi After this code is written aerender goes through every image to create the avi, depending to the amount of images this takes quiet a while. Is it possible to check in Autoit if there are no running processes left in the command line or if aerender fully finished?