2 Different Gitlab Runners runnig with different User

Hi i failled to set Up two different gitlab runner on a Windows 10 machine.

I want to run one runner as local machine Admin and one other as non privileged user but having network access. This is unfortunately not changeable.

I found out that you can install 2 runners with the --service command, but how i can choose the service in the registration step? The register command not overs the --service option.
Any ideas or suggestions?