Rafael Copquin remark this EULA paragraph I think It´s important to know in GUFA foro:

(b) YOUR RIGHT TO USE THE SOFTWARE SHALL BE EFFECTIVE FROM THE DATE YOU FIRST INSTALL THE SOFTWARE ON ANY DEVICE UNTIL JANUARY 31, 2003. THE SOFTWARE IS TIME SENSITIVE AND WILL NOT FUNCTION AFTER JANUARY 31, 2003. YOU NEED TO PLAN FOR THE EXPIRATION DATE AND MAKE A COPY OF AND REMOVE YOUR IMPORTANT DATA BEFORE THE EXPIRATION DATE.

Regards, and thank Rafael.
José Luis