I recently assembled a new PC and bought a Office 2003 Professional CD with product key. Now the problem am facing is my DVD drive is not working or not able to read the Office disk. So the only way left for me to get Office 2003 is by downloaded setup. Hence I want to whether I can download Office 2003 iso, install it on my system and activate it with the product key I received with my CD ? is it possible to activate the trial office with my purchased and unused product key ?