Restart functionality code in c# -Don't want to use process start

Hi

I am implementing Visual studio 2012 Set up project. Which will install some Extensions. I should run below command from visual studio command prompt, after I ran our  custom installer to view changes .This will reset visual studio.

devenv /setup

Now i am looking for any alternative solution to restart Visual studio  once i Install/Uninstall in background i want to rest vs 2012.I don't want to use

Process. Start

Default option available in extension manager

I want to reset Vs 2012 along with installation or Un-Installation of our Custom installer, so that i can view changes.

Thanks,

Best Regards Showkath