Registry startup flags

Hello !

I am developing a software which loads itself in to the Systm Tray when windows loads.
I have created a value in the registry HKLM / Run section.

I have seen that many startup applications have put flags in the value data after specifying the path of the application.

i.e. /background /min -onboot -quite etc.

My question 1. :rolleyes: What is the purpose of using thease flags?
My question 2. :rolleyes: Could any body give the complete list of flags and it's Usage?

Thanks and looking forward to see the replies. :eek2: