Q:

How to start cmd, run a long-running GUI program, then close cmd?

I need this when config Listary's custom command to load Rconsole within Explorer, with environment variable R_USER set to current directory for this very command.
What I currently use is effectively same as 
cmd /C "set R_USER=%path%&& C:\path\to\Rgui.exe"

(which I learn from here to set environment variable.)
It works fine, except open an extra window for cmd itself. which adds hassle to switch application with Alt-Tab.
How can I achieve same workflow but without open the window for cmd itself?
P.S.  (Listary handle the substitution part and run the specified command).

A:

You need to put start command before your executable file path.

