SC2 multiplayer isn't really 'crackable'. You would need to make your own Battle.net server/emulator. You can't just crack LAN in.
LightAssassin wrote on Jul 12, 2011, 13:45: FYI I was giving a legit copy of the game for my b'day and I cry for lan when my friend and I want to practice. Thanks blizzard... encouraging people to sit at home and not be social.