You could have downloaded BNetCommander 0.4.4 for Mac from our application library for free. This free software for Mac OS X was originally produced by Buttered Cat Software. The most popular version of the tool is 0.4. The application's installer is commonly called BNetCommander_0.4.4.zip.
From the developer:
Allows easy editing of the Battle.net? gateway list of Starcraft & Diablo 2.
Features
Simple Editing of Gateway lists
Re-ordering of gateways
Ability to choose default gateway
Supported Games
Starcraft/Broodwar
Diablo 2 & Diablo 2: Lord of Destruction
Warcraft III: Reign of Chaos & Warcraft III: The Frozen Throne (Slated to be removed)