This works, tested it: Classic Warcraft III --- Official Installers - Official Patches
For example:
Windows
RoC v1.27 German: https://us.battle.net/download/getLegacy?product=WAR3&locale=deDE&os=WIN
TFT v1.27 German: https://us.battle.net/download/getLegacy?product=W3XP&locale=deDE&os=WIN
Patch v1.27b German (TFT including RoC): http://ftp.blizzard.com/pub/war3x/patches/pc/War3TFT_127b_Deutsch.exe