I'm trying to install Ledger 9.0D (111017) Service Pack and get a "Selection Error !" message that says "The version of Adagio Ledger in the selected folder below, is too old for this Service Pack." H:\SOFTRAK\Ledger

Our current version is 9.0C and the screen that appears before the error message says that your current version is 9.0C and is located in the same directory as above.

Is there an easy solution for it?