How to install Warcraft III
Download a complete Warcraft III version 1.28.5 from one of the mirrors
Warcraft 3 1.28.5 (Mirror 5) Pass: 698366
Warning: don't install any third party software, all files can be downloaded directly through your browser. If the file is not found or not accessible, try another mirror
About This archive contains the game after a regular installation with the official Blizzard setup. Some files were added/altered to support Eurobattle.net Client.
Extract the zip to the directory you want your game to be in. Note that it should not contain any non-english symbols!