Hi All, I have created a GUI which will show the information of directories to be copied. For that i was using the GUI to show the information to Users. But when i copy the directory which contains more than 1GB folder the GUI frozes.. does any one why this happens? any suggestion for not happening? Note :- Most important thing is i am using _GUICtrlCreateGIF()which will anitmate the gif image in GUI. Thanks in advance for the advise.