Arduino MSI install

I'm eager to use Arduino in my pre-engineering class at the high school I teach at. A road block I am encountering is that the IT person at my school can't/won't install Arduino unless he has an MSI version of the install package.

He needs the install to be able to accept switches so it can be silently installed.

I'm hoping someone way smarter than me can point me in the right direction!

maybe repackage it with innosetup?

Sadly, I'm not smart enough to know how to repackage an executable. I guess if it was easy to do, there would be something already available.