Call another C# Program & pass parameters to bypass startup form

Question

Good day,  I need help.
1. I would like to open up another C# program onclick of button.
2. The other program i wantt to call has the same startup form that the one I'm calling from, how do i bypass the startup form of the program i'm calling with right parameter logins.
3. When trying to call the program from a location i get errors on the path: this seems to work "i:\\app\\test" but if i try this then error: "i:\\app\\test i:\\app\\startup.ini 1" - if i run the location then it's fine "i:\app\test i:\app\startup.ini 1"
Please Assist! Regards