The last and most important step: Delete the ‘META-INF’ folder inside the ‘minecraft.jar’ file otherwise, Minecraft will just crash when you start it up. Follow the instructions provided by the mod at this point: For the WW2 Guns mod, you’ll copy all of the ‘.class’ files from ModLoader, ModloaderMP, AudioMod, and the WW2 Guns mod into the open ‘minecraft.jar’ archive. You’ll see a long list of files in a new window. Install on all clients exactly the same mods, everything should be identical.
Once you have configured the server to play on the same WiFi (LAN) network or using Hamachi, you can install mods and play with your friends with them. Right-click the original minecraft.jar, and open the archive with Win-RAR/7-Zip. Setting up a Local Minecraft Server with Mods. If something goes wrong, you’ll want a clean copy to start over with. When you find it, make a copy of ‘minecraft.jar’, and stash it somewhere. Open the folder titled ‘bin’, and look for the file ‘minecraft.jar’–this is where the magic happens. The folder ‘.minecraft’ will be at the top. Click the Start button, and type ” %appdata% ” into the search window (without quotation marks but with one space before and another after the typed string) to get to Windows’ application data folder.
