Visual Basic 6 TextBox to >> PHP Page Echoing the Form Data.

Okay, basically I'm trying to get a PHP page to display Textbox data entered from my program.

I got "test.com/test.php", and a program with a TextBox (Username), and a Connect button, when the user presses "Connect" I want a webpage(WebBrowser1) to open and display "Welcome Username1!" aka (<?php echo $GET_['Username'] ?>).

How would I go about doing this?

Thanks in advance.