stop and uninstall service in visual studio setup and deployment -

i have windows service deployment project start service automatically once installed setup file. have passed argument -i in custom actions - install.

and in in custom actions - commit, have put argument -s.

but how stop , uninstall service in custom actions - uninstall ?

i tried doing -k, -u sequence, doesn't help

can me

what create wix merge module serviceinstall element embed in setup project.