I am using the following line to create a serviceControllerSQL type.
Code:
ServiceController serviceControllerSQL = new ServiceController("MSSQLSERVER");
I then check to see if the service is running and if so close it down.

My question is :

What happens if SQLExpress 2005 and SQLServer 2000 are running on the same machine. How can I just choose the Express service to stop ?

When I look at the services running on my machine I can only find MSSQLSERVER.