Program watches for file changes in particular directory (Watch directory) and then copies changed files to another folder (Mirror directory) saving directory structure. This can be very useful when you have local copy of remote site and want to upload only files, changed locally after last upload.We use this program while updating our site. After creating "mirror" of changes in local copy of site ("Create mirror and recapture") we just need to upload this "mirror"-folder to hosting FTP server. So we are uploading to server only files, that were actually changed after last uploading. This program helps to save time, money and traffic.