Running a script from the command line is opening the After Effects GUI

Hi there,

I'm wanting to headlessly run a script using the AfterFX -r command like so:

afterfx -r c:\script.jsx

But this seems to open up the full After Effects interface, runs the script, then immediately closes After Effects, I was wondering if this is normal, is it not meant to run the script headlessly, as in no GUI? The fact that in opens up After Effects seems to defeat the point, or am I missing something?

Thanks for any clarification on this

Steve