phpBB Extension - mChat Install Download the latest release. Unzip the downloaded release, and change the name of the folder to mchat. In the ext directory of your phpBB board, create a new directory named dmzx if it does not already exist. Copy the mchat folder to /ext/dmzx/. If done correctly, the folder structure should look like this: your forum root)/ext/dmzx/mchat/composer.json. Navigate in the ACP to Customise -> Manage extensions. Look for mChat under the Disabled Extensions list, and click its Enable link. Uninstall Navigate in the ACP to Customise -> Extension Management -> Extensions. Look for mChat under the Enabled Extensions list, and click its Disable link. To permanently uninstall, click Delete Data and then delete the /ext/dmzx/mchat folder. License GNU General Public License v2