Horodruin allows you to synchronize more than 2 folders with just few clicks. It includes some of the following key features: multiple folder handling (2 or more); the folder analysis can be modified to your needs; the ability to save and load your settings in project files; the ability to save in a separate folder the source changes (Export Delta); optimal file multithreaded copy engine (by using temporary files and/or by overwriting files); configurable: You can easily integrate it with a text editor, a hex editor, and a diff viewer; and minimal registry usage (only for Explorer integration).