mithcell r

Launcher Version: 1.0.1.3 Operating System: windows 7 Java Version: 1.6.0_21 Antivirus Program: as soon as i extract the server to a blank folder and click start.bat it gets all the way to the code printed below and it immediatly stops Description of Problem: as soon as i extract the server to a blank folder and click start.bat it gets all the way to Error Messages: java.lang.unsupportedClassVersionerror: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 Error Log: