If a user group has this right, then in the context menu "Administration" of MyChat Client (that is called by right clicking on a user's name in the chat) you can see an option "Shut down the client work".

 

Remote application immediately disconnects from the server and shuts down its work.

 

In a local log of the disconnected client you can see an entry about this event:

[31.05.2017 14:53:06/14:53:07] [WARNING] Received command for shutting down the application (halt)