Hi All, we have NT on a box and one application is running on it. Now we want to upgrade this to window 2003, I want to know whether this application will continue to work after upgrade or not, second thing is that my all data is place in D drive, will it be available after os upgrade as it is or i need to take back up of it. pl. put a light on upgrade from nt to win2003 pl. provide ur frrd back asap. it is quite urgent regards sanjeev gupta