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.

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.