We have released our latest Output Messenger Server and Client versions # 1.2.3 with following 12 additional MSI Client parameters, for you. At right now, most of all Client settings can be controlled.
confirm_exit, show_user_popup_message, windows_startup, spell_checker, single_click_chat, show_idle, idle_interval, auto_copy_text, convert_network_path, leave_groupchat, duplex_mode, echo_cancellation
You can refer the following page for more details about all custom parameters setup and MSI installation.
http://support.outputmessenger.com/client-msi-installer-and-parameters/
Hence, please download and install the latest versions from the following ‘Downloads’ page.
http://www.outputmessenger.com/lan-messenger-downloads/