# UnregisterEngine(IProjectSearchEngine)

> Unregisters a dynamically registered engine.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.SearchService](/engine/6000.7/script-reference/unityeditor/searchservice.md)
* **Assembly:** UnityEditor.CoreModule

> **Warning:**
>
> **Removed.** Project has been deprecated. Use ProjectSearch instead
>
> **Upgrade to** [ProjectSearch](/engine/6000.7/script-reference/unityeditor/searchservice/projectsearch.md)

```csharp
public static void UnregisterEngine(IProjectSearchEngine engine)
```

### Parameters

**** (\[IProjectSearchEngine]\(/engine/6000.7/script-reference/unityeditor/searchservice/iprojectsearchengine)): The Project search engine to unregister.