Can I activate an existing UE4 application when I call it, instead of creating a new application process?

I want to use the URL Protocol feature of windows to call the UE4 application.

The result is that each time I call it, a new process is created for the UE4 application.

Can I activate the UE4 application that has been created when it is called again, instead of creating a new process?

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I would be grateful if you could provide some help