How make Sub Process?

I dont know the real term on this but.. my idea is i want to open notepad.ex and other windows application..
but i want it run process under my main application.

here is the image:


in my button i have this:
File.Open("C:\\ProgramData\\Microsoft\\Windows\\St art Menu\\Programs\\Accessories\\notepad.exe", "", SW_SHOWNORMAL);

any help would be appreciated.. thank you..


Telco