MSCS aware application customization

I have installed a service in two systems which are configured in a cluster environment.
I want to monitor the service.An application which is used to set password to the service, will restart the service each time when the password is changed.

I want failover to occur when the service is stoped on all cases, except the case when the service is restarted by the application to apply the password change

Can the above condition can be achieved by making the service as cluster aware.
If it is possible how it can be achieved?

Thanks in advance