Using .js scripts to launch Photoshop

Hi I'm kind of new to this Photoshops scripts field

and would like to  write an external application (.NET based) that would be able to invoke  the Photoshop application and run Photoshop .js scripts on it and then return the reply to some other external application.

I would like to now if and how it is possible to executes scripts  that  way? It is obvious that I could launch the Photoshop application by  calling the .exe file. But how do I run the script and retrieve data  such as status of the script, errors, etc.

Any  idea's???

Thanks