I think there are different ways to acive your goal.
First solution that comes in my mind is to set the service to start manually. Then you need to create two command line files. Open the notepad eitor and type "net stop sqlbrowser" on the first line and on the next line "shutdown -s -t 20". Save the file as "shutdown.bat" or "shutdown.cmd" on your desktop.
If you want to turn off your computer just click this file.
The second file you need to create should have the content "net start sqlbrowser". Save that file as well to an name e.g. "pcStart.bat" or .cmd. Because the service is set up not to start automaticly you need to put this file to the folder "Startup" in you windows start menu. When you start your computer this file should be started after you logged in to your user. ( startupfolder http://lifehacker.com/5829375/how-to-start-a-program-automatically-when-your-computer-boots)
Service names may be different but with the right names it should work fine.
There are for sure other solutions.