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Caution about Mods
Before modifying your Minecraft to make sure your Minecraft doesnt crash backup your worlds and also be aware that mods are unsupported by Mojang, they won't be able to help you if anything happens to your Minecraft game. When there is a new update the Minecraft mod or mods that you have installed will not work unless you use the version it was intended for. It is therefore recomended to delete all the Modifications in your "mods" folder before installing any new mods to your Minecraft as some mods will crash your minecraft if they are used together.
In order to make a Minecraft backup you can simply, Locate your minecraft.jar folder in /[your username]/AppData/Roaming. Next, simply right-click the minecraft.jar file. Create a new folder (you may want to call it Minecraft Backup) anywhere on your hard drive and paste the minecraft.jar file into this new folder. Finally, rename the minecraft.jar file to something like "Minecraft Backup".
Mods:modifications, are add-ons used for various purposes. They can be used to make your game easier, harder, add more monsters, create servers easily, add items to your game, new features, add new worlds, a few even change your game completely! Mods are normally uploaded by the players themselves too! Mods are mostly found on the minecraft forums or on Planetminecraft.
- Download the mod files and the other mods it requires
- Press start and type "%appdata%" without the quotes
- Click Roaming
- Click .minecraft
- Open the bin folder
- open minecraft.jar (may appear as minecraft) with an archiving sofware (7zip, WInRAR, WinZIP etc.)
- Close minecraft (if open)
- Delete the META-INF folder as it stops mods from working at all
- Open up the mod (it is a folder but should appear as the archiving software's icon)
- Open up the mods it requires (same as up there ^)
- Drag everything in the required mod's and the mod's folders into minecraft.jar but DO NOT drag it into one of those folders
- Close all of those windows then open minecraft and test it
- Your mod should work now :D
Remember though, as of every time Minecraft updates it will delete every mod and its memory (in the minecraft client only the folders will stay), and you must install new mods FOR THAT VERSION OF MINECRAFT, and as the writer, that is going to save me because if i install any mods, it does not let me go in to multiplayer servers. I messed up minecraft by either installing too many mods, or installing the wrong mods together. I am not sure of it.