The Nikon View Windows software allows the normal Copy/Paste operation for transferring
camera files from the serial-connected camera to your computer.
However, when an image in the camera is selected for copying, it is not placed in
the system clipboard (RAM) but is copied to a folder on your hard disk called \Windows\Temp\Camexp\Transfer.
From time to time, you might like to delete the images in this folder to free up space
on your hard disk.
Note that if the image that is being copied has the same name as an image which
is already in the \Windows\Temp\Camexp\Transfer folder, then the new
image filename will have a number (1), (2) etc added to it.