Hello. I put my question here because there are a lots of people more expert than me. My question was : Can i convert an installed version of 2003R2 standard 32 bits to Enterprise version. My goal was to put more than 4go of RAM on a production server i have. I have licence for Enterprise, but i've lots of old apps that i dont know how they works : so difficult to reinstall. If someone can help me i thank you a lot.