i design a program using C# (as Desktop Based Program) and PHP (Web Based Program)
the idea of the program is as following :
the user have the Application in his machine ( .EXE Application ) , and when he run the program , he have to enter the user name and the password , then the Application will send these information to .PHP File on the website ,
the PHP File will check for the validity of this information in the DB , and will respond by yes or no (correct or not correct) !
My Question is : how can i respond the answer to an application on the user machine using PHP ,
in another word , what should i use to send the information from the webserver applications (PHP Application) , to User Machine application (Windows Application -.EXE- )
Note : i need to send the results in XML File to be will structured , how can i do it