Hello ! I searched a way to easily backup my au3 scripts from work to home and vice versa. I found no (simple) equivalent to rsync on windows. So this is my attempt. It works "as is" and lets you choose friendly the source and destination directories, or with command line args. In case of command line mode, remember to enclose spaced paths with " Example : rsync "c:\documents and settings\me\my_folder" e:\ where e:\ is your USB storage key for example Rsync checks if a newer ver