Write graphical Windows software - Bandwidht throttling, nice UI(GUI?),

A PROGRAM THAT THROTTLES BANDWIDTH ACCESSIBLE BY THE USER. WINDOWS THAT POP UP WITH FAKE GRAPHICAL INFO ABOUT THEIR INTERNET SPEED. POSSIBILITY TO UPGRADE TO A PAID VERSION OF THE PROGRAM THAT DOES NOT THROTTLE THE BANDWIDTH. A WINDOW INSIDE THE PROGRAM WITH A TEXTBOX TO ENTER ACTIVATION CODE. PAID VERSION SHOULD HAVE ON-OFF BUTTONS, WHERE ON IS THE DEFAULT VALUE. THE TRIAL VERSION SHOULD HAVE 'ADS' THAT POP UP. THE PROGRAM NEEDS TO BE WELL PRESENTED AND EASY TO UNDERSTAND. GRAPHICAL DESIGN IS NECESSARY. MORE DETAILS WILL BE GIVEN AFTER OFFER HAS BEEN RECEIVED. PRICES CAN BE NEGOTIATED.