I would like to automatically synchronize folder with subfolders (with different kind of files in them) located lets say on drive D:\ (in windows 2003 server) with another folder on same D drive using bat file (or some other file). In other words I want an identical copy (except of main folder as two foders with same name may not co-exist in same directory) of original folders with subfolders and files be created on the same drive and updated every three hours if additional files moved into source folders or more folders created, but I don't want source folders and files be updated vice versa, thus from its copy. Hope my question is not too confusing. I'd like it to operate in quite mode with no errors, confirmation or any kind of pop up messages on the screen. However, overwriting in this case is OK and actually GOOD, but with not confirmation or other "pop ups."