I want to upgrade my ultra plus pak 2016 to 2017,but I only want to upgrade the program files. Support told me I can get the pro 2017 and only install the program files, but to make sure my ultra plus realtracks are some place safe where they won't be over written. My BIAB program files and realtracks are on the pg music external hard drive. I've thought about a couple of ways to do this, but I would like to know how some of you guys would do it. Thanks.