Update for Mavericks:
Warcraft 3 The Frozen Throne will not work on Mavericks. NEVER!
The reason is simple. WC3 was build for Power PC (old macs without intel cpus) and Apple dropped another bite of Power PC Support in Mavericks. You couldn’t install or update wc3 on the last few Mac OS X versions, now on Mavericks you cant connect to the battle.net or LAN. Apple dropped support for „Open Transport for networking“ which was used by wc3. So there are 2 solutions for this problem.
Apple adds Open Transport again, which will never happen!