TrainCraft Mod 1.7.1 For Minecraft 1.7.1/1.7.2 Always back-up your minecraft.jar. Start with a fresh minecraft.jar. Open start>run>%appdata%>.minecraft>bins> Open Minecraft.jar by using winrar or 7zip. Delete META-INF inside minecraft.jar. Download the Minecraft Forge API and Drag all the contents inside MC Forge into Minecraft.jar opened by winrar or 7zip. Download Trains and Zeppelin Mod. Drag the