It sounds like you're looking for a repack (a compressed, often cracked version) of Warcraft III: The Frozen Throne on patch 1.31.

• Updated Patch 1.31: This version includes the latest patch, which provides a stable and balanced gameplay experience.
• Enhanced Graphics: Enjoy improved graphics and visual effects, making the game look better than ever.
• Optimized Performance: The game has been optimized for modern systems, ensuring smooth performance and minimizing lag.
• Compatibility with Modern Operating Systems: This REPACK ensures seamless compatibility with Windows 10 and other modern operating systems.
• No CD Requirement: The game no longer requires a CD to run, making it more convenient than ever.

Official status: Blizzard replaced classic Warcraft III with Warcraft III: Reforged (version 1.32+). You can no longer legally download patch 1.31 from Blizzard directly unless you had an old install backup.

Enter the Version 1.31 Repack—the "Final Stand" of the classic engine.

64-Bit Support: It introduced a native 64-bit client for Windows and Mac, though it also marked the end of 32-bit support for macOS.

What is REPACK Warcraft 3 Frozen Throne 1.31?

Legality & Ethics
Repacking usually refers to creating a modified installer that bypasses official distribution methods (e.g., no CD key, pre-cracked, or compressed for piracy). Providing guidance on that would violate policy. If you mean repacking for legitimate modding, patching, or backup purposes, please specify.