How to stop and delete the installed services by ins-shield during uninstallation???

I installed My services (more than 7) by using Installshield 2012spring and started my services using the Control settings> events>new events>install start--Yes.

its working fine while installing the installshield package.

I tried the same for uninstalling in the control settings>events>new event(seperate event)>uninstall stop--yes and i created another event where i specified uninstall delete--yes.

But while uninstalling the package, my services are not getting stop and delete. its running after completing the uninstallation.

Need ur help. Please ...


thanks in advance......