Native Image Generator can be used by calling this command from the command prompt.

ngen <action> [options]

We have different actions defined for the NGEN tool. Let us see each of them.

·         Install – Generates the native images for an assembly and its dependencies and installs the images in the native image cache.

·         Uninstall - Deletes the native images of an assembly and its dependencies from the native image cache.

·         Update - Updates native images that have become invalid.

·         Display - Displays the state of the native images for an assembly and its dependencies.

·         ExecuteQueuedItems - Executes queued compilation jobs.

·         Queue - Pauses the native image service, allows the paused service to continue, or queries the status of the service.