The latest patch is 188.8.131.520 which can be downloaded from here. Requires: 184.108.40.206 and 220.127.116.119.
Changelog: Patches History.
To upgrade to the latest patch, follow these simple steps:
- Download the latest full patch.
- Unpack it (using any decent archiving utility e.g. 7-Zip or WinRAR).
- Install it. Make sure the installer has chosen the right path to Original War's directory, fix it if necessary! It may take some time to install.
That's it. Now you should have the latest patch installed on your copy of Original War. You can check it in the main menu while in game.