Opening other programs from a program

I am using MS VS 6 Professional, and I'm creating a dialog box using MFC. I have created a function that runs when onOk() is processed (clicking the ok button) and I'm going to have it do a few things, then close the program, but before it closes, i want it to open another .exe that I'm going to create shortly....how would i go about doing this?

Easiest way.....look up ShellExecute()

thank you very much, i've been cosulting my book for the right function but i came up empty, couldn't think of any good keywords, shellexecute never really came to mind as the name. i knew it had to be pretty common since it's done all the time, thanks again.