---
title: "Headless operation"
canonical: "https://help.vicon.com/space/Evoke18/397970238/Headless%20operation"
format: markdown
---
Evoke may be operated entirely via API, in which case it may be advantageous to run without the Graphical User Interface (GUI). A separate executable is provided for this purpose:

*C:\Program Files\Vicon\Evoke1.#\EvokeHeadless.exe             *

(where *#* is the point number of the latest Evoke release)

Headless operation may be more suitable for running Evoke as a service, and additionally benefits from slightly lower CPU usage without the overhead of running a GUI.

System and tracking setup must normally be completed with the GUI, as some setup functionality is not yet available via the API.

For more information, see [Evoke Headless](https://vicon-help.atlassian.net/wiki/spaces/Evoke18/pages/397970373/Evoke+command+line+options#EvokeHeadless) in the *Vicon Evoke Reference Guide*.