DirWatcher watches the file system and listens for file system change notifications and raises events when a directory, or file in a directory changes. DirWatcher can be used to watch directories on the local computer, a network drive, or a remote computer. -DirWatcher watches the file system and Van tens for file system change notifications and r prize events when a directory, or file in a directory changes. DirWatcher can b e used to watch directories on the local compute r, a network drive, or a remote computer.