# How To Run MineAcademy Plugins On Minecraft 1.2.5 – 1.6.4

Source: https://mineacademy.org/oldmcsupport
Published: 2022-05-26 · Updated: 2023-07-08

Some of our plugins such as ChatControl offer incredible backward compatibility. Because it is illegal to redistribute a modified Bukkit that would make it easier, we require some extra steps to get it working.

Here is a step-by-step 5-minute guide on getting these plugins to work with ancient Minecraft versions:

**Before you start:**

- Please **only use Java 8** **with Minecraft versions older than 1.16.5**!
- Ensure you have the **-Dfile.encoding=UTF8** flag in your server start-up script, [see this link](https://bukkit.org/threads/startup-script-flag-for-enabling-utf-8.171342/#post-1828241).

**Instructions for specific Minecraft versions:**

**Minecraft 1.7.10, 1.6.4, 1.5.2, 1.4.7**:
You need to [install BungeeChatAPI](https://bitbucket.org/kangarko/bungeechatapi/downloads/).

**Minecraft 1.4.7 and older**:
Our menu system won’t work due to tons of missing libraries.

**Minecraft 1.3.2**:
Broken, do not use.

**Minecraft 1.2.5**:

1. Do NOT install BungeeChatAPI. [Install OldMCSupport instead](https://bitbucket.org/kangarko/oldmcsupport/downloads/).
2. Stop your server.
3. Open craftbukkit.jar (the main server jar file) with WinRar or similar:
   1. **Navigate to META-INF, open MANIFEST.MF and set Sealed to false for all keys**. Save the file inside the jar.
   2. LEAVE IT OPENED.
4. Open OldMCSupport.jar file, navigate to org/bukkit/craftbukkit/scheduler, then in your other window with craftbukkit.jar opened, navigate to the same path, and **drag the CraftScheduler class from OldMCSupport into the server jar to the right package**.
   1. Example: I dragged the single file from the top to the bottom window, see below:
5. **Do the same for org/bukkit/Sound class**, drag the class over from OldMCSupport into your craftbukkit.jar.

[![](https://mineacademy.org/wp-content/uploads/oldmcsupport.webp)](https://mineacademy.org/wp-content/uploads/oldmcsupport.webp)