Yes, the installer does this for you. Some people have tried to remove files on their own, or move locations of the product, and this causes issues. To everyone here: When you install 1.1 (This was said in the update e-mail notice as well), the installer will detect whether you have a 1.0 or no install at all of the CRJ. Depending on your situation, the installer will do everything for you. There is no need for you to manually remove 1.0, and you shouldn't!