Today a made a release of jsiServiceManager.
I fixed one bug that manifested itself when restarting a service and one that popped some warning dialogs when stopping a group of services.
When restarting a service it failed to stop it first, it was text-book-stupid. I forgot to negate a condition when checking the service status.
The other one failed when one service in a group was already stopped. It reported all services as already stopped even though it stopped them.
There is a new installer so please uninstall your previous version before trying this one. To get the .Net Framework go to smallestdotnet.