New Post: Launch application after install as normal user

Hi Ole,
my installer needs administrative priviledges. When I start my application after the installation with Process.Start it's also started with administrative priviledges. ut I don't want that. The application should start with the "original" user instance. Is there an easy way to do it?
Does this do it?: http://wixtoolset.org/documentation/manual/v3/howtos/ui_and_localization/run_program_after_install.html

And if yes, how do I call this custom action within my wixsharp script?