This is a file/folder synchronization tool for backup purposes. Set source & destination pairs, segregated into separate projects as required.
Settings allow for skipping desktop.ini files as these are sometimes blocked, and also symbolic links can be skipped if required to prevent any errors.
The detection of files/folders is very thorough and painfully slow, don't be surprised if this takes a ridiculously long time to get through large folder trees. Future updates may attempt to access the MFT instead to speed things up.