After you have installed, when you double click the icon on the desktop for TC you get a menu box asking for your registration information. THAT DON'T WORK!!!!!!!! You fill it out but then TCC (which is all that I use) still tells you that you are not registered. You have to go into TC and ferret ou the registration box there (NOT the easiest thing to find) and fill out THAT menu to actually register the program!! PAIN!!!