Q:

read input from html forms, execute local program,output results

I have a question that will help me understand how stuff works and investigate feasibility of a bigger plan I have in mind.
Simply given - lets assume that all things run locally - I am wondering if it is possible to:

create an html page with a form that will prompt the user to enter
the local path of an input file inputFile.dat 
this  input file will be fed to a c++ exe program that expects it for input  
the c++ exe  file will run (this exe file depends on libraries etc but lets     assume all are local here) 
...  and will output the result on screen

It sounds simple, but is it? 
Many thanks folks!

A:

Yes, this is definitely possible, if you want to use PHP or some other scripting language. 

Create a form on your web page

Add the directory of the program
Add the directory of the data

When submitted, use the PHP (or other language) exec function (docs) to execute the program, with the supplied data as argument
The exec function returns output from the program. 
Display the output as wished on your page.

Good luck!

