Deciding Whether Your Modpack Needs DHMPEMFixer

If you found DHMPEMFixer inside a modpack or your mods folder and are unsure what it changes in your world, it adds no blocks, items, or menus. Its sole purpose is keeping Distant Horizons and Moonlit Performance Enhancement Module (MPEM) working together on Forge without crashing.

Auditing Your Installed Mods

1. Open your Minecraft game directory and inspect the contents of your mods folder.

2. Look for both Distant Horizons and Moonlit Performance Enhancement Module in the file list.

3. Check that your modpack uses Forge, since this fix specifically patches Forge client and server proxies.

4. Keep DHMPEMFixer installed if both mods are present; removing it will cause Distant Horizons to crash on startup with null pointer errors.

Removing Unused Compatibility Files

1. If you decide to remove either Distant Horizons or MPEM from your setup, the proxy conflict between the two mods will no longer occur.

2. Once one of those two mods is gone, you can safely move DHMPEMFixer out of your mods folder.

3. Launch Minecraft and load a test world to confirm your remaining mods start cleanly.