How to set session/cookie from client GUI app to be accessed by the webpage

I am trying to develop a system such that when the user clicks on a button in the client GUI system, it will automatically open the URL website and it would be able to get the credentials needed (login/pwd) when the user initially access the client GUI system. This is to avoid having the user to login on the webpage. I am using VisualWave for the website development.

 

Is there a way for the information be passed from a client GUI to a webpage? If I create HTTPCookie from the client GUI before it opens the URL website, how can I attach the cookie to the website?

 

Hoping for your advice! Thanks!!!

 

Regards,

Julia