AtmoLight is a process plugin that interfaces with different ambilight solutions and brings Ambilight to MediaPortal.
The main function is to send the needed data directly to your ambilight solution to reduce the CPU load drastically, making Ambilight and smooth playback possible.
For more information please have a look at these forum threads.
AtmoLight for MP2: http://forum.team-mediaportal.com/threads/atmolight-2-0-0-0-beta-1-for-mediaportal2-development-discussion-test-version-thread.125674/
AtmoLight for MP1: http://forum.team-mediaportal.com/threads/atmolight-1-13-0-0-2014-06-17.125633/
Download and execute the attached .exe. This installs the plugin for MP2 Summer'15 or newer
The attached .zip file contains the required components for older MP2 versions.