# Operating System Condition With the help of the Operating System Condition it is possible to use the operating system of the client that is executing the stream as a condition for further actions. Therefore it is mandatory to select the client as host in the event trigger. Here it is possible to check whether the operating system is Windows, Unix, Linux or MAC. This can be helpful e.g. for the right decision of the used AME version for rendering. Also it can be checked if the defined job profile can potentially be executed by different render nodes. The Operating System Condition can be queried in every stream. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.helmut.de/helmut4-releases/v4.6.0/helmut4-components/streamdesigner/nodes/conditions/os/operating-system-condition.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.