Frequently I am in need to update a folder taking files from many different folders (and finally update them too).
I looked on the web but I haven’t found anything that could easily do this dirty work.  So I wrote this small program.

It is a file synchronizer with unique features like handling more than 2 folders with just a few clicks.  It’s very simple, but I strongly recommend to read the included documentation.

It has the following key features:

  • multiple folder handling (2 or more).
  • the folder analysis can be modified on your needs.
  • the ability to handle project files.
  • the ability to save in a separate folder the source changes (Export Delta).
  • multithreaded.
  • optimal file multithreaded copy engine (by using temporary file and/or by overwriting files).
  • configurable.  You can easily integrate it with a text editor, a hex editor, and a diff viewer.
  • minimal registry usage (only for Explorer integration).
  • small, fast, and clean.
  • HTML Help included.
  • for advanced users only!!!

The program is freeware and it is licensed under a Creative Commons Attribution-NoDerivs 4.0 Unported License. Creative Common license

Minimal requirements:

Pentium processor, 16Mb RAM, WinVista, IE 8


v5.9.433.0 updated 26/10/2019

Version History

Download from: (2 MB)

this site:
Horodruin installer package (59589 downloads)

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My PGP Public Key (867 downloads)  to verify the setup kit (if you wish).


  • Horodruin v5.x